{"schemaVersion":"2.0.0","releaseVersion":"2026.11-beta.1","model":{"profile":"pre1955","modelId":"roman-1954-projection","label":"1954 Roman calendar model","projection":true},"options":{"epiphanySunday":false,"ascensionSunday":false,"corpusSunday":false},"range":{"startDate":"2026-01-01","endDate":"2026-12-31","startYear":2026,"endYear":2026,"years":1,"days":365},"days":[{"date":"2026-01-01","weekday":"Thursday","principal":{"name":"Circumcision of Our Lord and Octave Day of the Nativity","rank":"double_2","priority":50,"color":"White","season":"Christmastide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Circumcision of Our Lord and Octave Day of the Nativity (double of the II class).","Circumcision of Our Lord and Octave Day of the Nativity is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-02","weekday":"Friday","principal":{"name":"Octave Day of Saint Stephen","rank":"simple","priority":140,"color":"Red","season":"Christmastide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Octave Day of Saint Stephen (octave day of a simple octave, simple).","Octave Day of Saint Stephen is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-03","weekday":"Saturday","principal":{"name":"Octave Day of Saint John the Apostle","rank":"simple","priority":140,"color":"White","season":"Christmastide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Octave Day of Saint John the Apostle (octave day of a simple octave, simple).","Octave Day of Saint John the Apostle is the office of the day.","Colour: White, from Christmas to the octave of the Epiphany (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-04","weekday":"Sunday","principal":{"name":"Most Holy Name of Jesus","rank":"double_2","priority":50,"color":"White","season":"Christmastide","source":"temporal","notes":""},"options":[],"otherCandidates":[{"name":"Octave Day of the Holy Innocents","rank":"simple","priority":140,"color":"Red","season":"Christmastide","source":"octave","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Christmastide. Falling on this day: Most Holy Name of Jesus (double of the II class); and Octave Day of the Holy Innocents (octave day of a simple octave, simple).","The Holy Name of Jesus is kept on the Sunday between the Circumcision and the Epiphany, or on 2 January when there is none (Additiones V.3).","A simple octave day yields to every office above a simple (Additiones III.4; Tabella).","Octave Day of the Holy Innocents is commemorated at Lauds, and at Mass only in private Masses: a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-05","weekday":"Monday","principal":{"name":"Vigil of the Epiphany","rank":"semidouble","priority":44,"color":"White","season":"Christmastide","source":"temporal","notes":"Privileged vigil."},"options":[],"otherCandidates":[{"name":"Saint Telesphorus, Pope and Martyr","rank":"simple","priority":155,"color":"Red","season":"Christmastide","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Christmastide. Falling on this day: Vigil of the Epiphany (privileged vigil of the II class, semidouble); and Saint Telesphorus, Pope and Martyr (commemoration only).","Vigil of the Epiphany is the office of the day.","Saint Telesphorus, Pope and Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, from Christmas to the octave of the Epiphany (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-06","weekday":"Tuesday","principal":{"name":"Epiphany of Our Lord","rank":"double_1","priority":30,"color":"White","season":"Christmastide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Epiphany of Our Lord (double of the I class).","Epiphany of Our Lord is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-07","weekday":"Wednesday","principal":{"name":"Second Day within the Octave of the Epiphany","rank":"semidouble","priority":42,"color":"White","season":"Christmastide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Second Day within the Octave of the Epiphany (day within a privileged octave of the 2nd order, semidouble).","Second Day within the Octave of the Epiphany is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-08","weekday":"Thursday","principal":{"name":"Third Day within the Octave of the Epiphany","rank":"semidouble","priority":42,"color":"White","season":"Christmastide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Third Day within the Octave of the Epiphany (day within a privileged octave of the 2nd order, semidouble).","Third Day within the Octave of the Epiphany is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-09","weekday":"Friday","principal":{"name":"Fourth Day within the Octave of the Epiphany","rank":"semidouble","priority":42,"color":"White","season":"Christmastide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Fourth Day within the Octave of the Epiphany (day within a privileged octave of the 2nd order, semidouble).","Fourth Day within the Octave of the Epiphany is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-10","weekday":"Saturday","principal":{"name":"Fifth Day within the Octave of the Epiphany","rank":"semidouble","priority":42,"color":"White","season":"Christmastide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Fifth Day within the Octave of the Epiphany (day within a privileged octave of the 2nd order, semidouble).","Fifth Day within the Octave of the Epiphany is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-11","weekday":"Sunday","principal":{"name":"Holy Family of Jesus, Mary and Joseph","rank":"greater_double","priority":40.5,"color":"White","season":"Christmastide","source":"temporal","notes":""},"options":[],"otherCandidates":[{"name":"First Sunday after Epiphany","rank":"semidouble","priority":41,"color":"White","season":"Christmastide","source":"temporal","notes":"Commemorated (Lauds and Mass)."},{"name":"Sixth Day within the Octave of the Epiphany","rank":"semidouble","priority":42,"color":"White","season":"Christmastide","source":"octave","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Hyginus, Pope and Martyr","rank":"simple","priority":155,"color":"Red","season":"Christmastide","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Christmastide. Falling on this day: Holy Family of Jesus, Mary and Joseph (greater double); First Sunday after Epiphany (lesser Sunday, semidouble); Sixth Day within the Octave of the Epiphany (day within a privileged octave of the 2nd order, semidouble); and Saint Hyginus, Pope and Martyr (commemoration only).","The Holy Family is kept on the Sunday within the octave of the Epiphany (Additiones V.3).","First Sunday after Epiphany is commemorated at Lauds and Mass: a Sunday that yields to a feast of the Lord is commemorated (Additiones IV.2; Notanda 10).","Sixth Day within the Octave of the Epiphany is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Saint Hyginus, Pope and Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: First Sunday after Epiphany; Sixth Day within the Octave of the Epiphany; and Saint Hyginus, Pope and Martyr (Additiones VII.5).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-12","weekday":"Monday","principal":{"name":"Seventh Day within the Octave of the Epiphany","rank":"semidouble","priority":42,"color":"White","season":"Christmastide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Seventh Day within the Octave of the Epiphany (day within a privileged octave of the 2nd order, semidouble).","Seventh Day within the Octave of the Epiphany is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-13","weekday":"Tuesday","principal":{"name":"Octave Day of the Epiphany","rank":"greater_double","priority":43,"color":"White","season":"Christmastide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Octave Day of the Epiphany (octave day of a privileged octave of the 2nd order, greater double).","Octave Day of the Epiphany is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-14","weekday":"Wednesday","principal":{"name":"Saint Hilary, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Felix, Priest and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Epiphany. Falling on this day: Saint Hilary, Bishop, Confessor and Doctor of the Church (double); and Saint Felix, Priest and Martyr (commemoration only).","Saint Hilary, Bishop, Confessor and Doctor of the Church is the office of the day.","Saint Felix, Priest and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-15","weekday":"Thursday","principal":{"name":"Saint Paul the First Hermit, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Maurus, Abbot","rank":"simple","priority":155,"color":"White","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Epiphany. Falling on this day: Saint Paul the First Hermit, Confessor (double); and Saint Maurus, Abbot (commemoration only).","Saint Paul the First Hermit, Confessor is the office of the day.","Saint Maurus, Abbot is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-16","weekday":"Friday","principal":{"name":"Saint Marcellus I, Pope and Martyr","rank":"semidouble","priority":100,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Epiphany. One office falls on this day: Saint Marcellus I, Pope and Martyr (semidouble).","Saint Marcellus I, Pope and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-17","weekday":"Saturday","principal":{"name":"Saint Anthony, Abbot","rank":"double","priority":90,"color":"White","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Epiphany. One office falls on this day: Saint Anthony, Abbot (double).","Saint Anthony, Abbot is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-18","weekday":"Sunday","principal":{"name":"Second Sunday after Epiphany","rank":"semidouble","priority":60,"color":"Green","season":"Time after Epiphany","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Chair of Saint Peter at Rome","rank":"greater_double","priority":80,"color":"White","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Paul, Apostle","rank":"simple","priority":155,"color":"White","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Prisca, Virgin and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Epiphany. Falling on this day: Second Sunday after Epiphany (lesser Sunday, semidouble); Chair of Saint Peter at Rome (greater double); Saint Paul, Apostle (commemoration only); and Saint Prisca, Virgin and Martyr (commemoration only).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Chair of Saint Peter at Rome is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Saint Paul, Apostle is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Saint Prisca, Virgin and Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Chair of Saint Peter at Rome; Saint Paul, Apostle; and Saint Prisca, Virgin and Martyr (Additiones VII.5).","Colour: Green, for the office of the season after the octave of the Epiphany (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-19","weekday":"Monday","principal":{"name":"Saints Marius, Martha, Audifax and Abachum, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Canute, King and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Epiphany. Falling on this day: Saints Marius, Martha, Audifax and Abachum, Martyrs (simple); and Saint Canute, King and Martyr (commemoration only).","Saints Marius, Martha, Audifax and Abachum, Martyrs is the office of the day.","Saint Canute, King and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-20","weekday":"Tuesday","principal":{"name":"Saints Fabian, Pope, and Sebastian, Martyrs","rank":"double","priority":90,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Epiphany. One office falls on this day: Saints Fabian, Pope, and Sebastian, Martyrs (double).","Saints Fabian, Pope, and Sebastian, Martyrs is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-21","weekday":"Wednesday","principal":{"name":"Saint Agnes, Virgin and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Epiphany. One office falls on this day: Saint Agnes, Virgin and Martyr (double).","Saint Agnes, Virgin and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-22","weekday":"Thursday","principal":{"name":"Saints Vincent and Anastasius, Martyrs","rank":"semidouble","priority":100,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Epiphany. One office falls on this day: Saints Vincent and Anastasius, Martyrs (semidouble).","Saints Vincent and Anastasius, Martyrs is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-23","weekday":"Friday","principal":{"name":"Saint Raymond of Peñafort, Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Emerentiana, Virgin and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Epiphany. Falling on this day: Saint Raymond of Peñafort, Confessor (semidouble); and Saint Emerentiana, Virgin and Martyr (commemoration only).","Saint Raymond of Peñafort, Confessor is the office of the day.","Saint Emerentiana, Virgin and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-24","weekday":"Saturday","principal":{"name":"Saint Timothy, Bishop and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Epiphany. One office falls on this day: Saint Timothy, Bishop and Martyr (double).","Saint Timothy, Bishop and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-25","weekday":"Sunday","principal":{"name":"Third Sunday after Epiphany","rank":"semidouble","priority":60,"color":"Green","season":"Time after Epiphany","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Conversion of Saint Paul, Apostle","rank":"greater_double","priority":80,"color":"White","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Peter, Apostle","rank":"simple","priority":155,"color":"White","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Epiphany. Falling on this day: Third Sunday after Epiphany (lesser Sunday, semidouble); Conversion of Saint Paul, Apostle (greater double); and Saint Peter, Apostle (commemoration only).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Conversion of Saint Paul, Apostle is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Saint Peter, Apostle is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Conversion of Saint Paul, Apostle; and Saint Peter, Apostle (Additiones VII.5).","Colour: Green, for the office of the season after the octave of the Epiphany (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-26","weekday":"Monday","principal":{"name":"Saint Polycarp, Bishop and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Epiphany. One office falls on this day: Saint Polycarp, Bishop and Martyr (double).","Saint Polycarp, Bishop and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-27","weekday":"Tuesday","principal":{"name":"Saint John Chrysostom, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Epiphany. One office falls on this day: Saint John Chrysostom, Bishop, Confessor and Doctor of the Church (double).","Saint John Chrysostom, Bishop, Confessor and Doctor of the Church is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-28","weekday":"Wednesday","principal":{"name":"Saint Peter Nolasco, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Agnes, Virgin and Martyr (second feast)","rank":"simple","priority":155,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Epiphany. Falling on this day: Saint Peter Nolasco, Confessor (double); and Saint Agnes, Virgin and Martyr (second feast) (commemoration only).","Saint Peter Nolasco, Confessor is the office of the day.","Saint Agnes, Virgin and Martyr (second feast) is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-29","weekday":"Thursday","principal":{"name":"Saint Francis de Sales, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Epiphany. One office falls on this day: Saint Francis de Sales, Bishop, Confessor and Doctor of the Church (double).","Saint Francis de Sales, Bishop, Confessor and Doctor of the Church is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-30","weekday":"Friday","principal":{"name":"Saint Martina, Virgin and Martyr","rank":"semidouble","priority":100,"color":"Red","season":"Time after Epiphany","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Epiphany. One office falls on this day: Saint Martina, Virgin and Martyr (semidouble).","Saint Martina, Virgin and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-01-31","weekday":"Saturday","principal":{"name":"Fourth Sunday after Epiphany (anticipated)","rank":"semidouble","priority":60,"color":"Green","season":"Time after Epiphany","source":"temporal","notes":"Minor Sunday, anticipated on Saturday."},"options":[],"otherCandidates":[{"name":"Saint John Bosco, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Epiphany","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Epiphany. Falling on this day: Fourth Sunday after Epiphany (anticipated) (lesser Sunday, semidouble); and Saint John Bosco, Confessor (double).","There is no room for this Sunday after Pentecost this year, so it is anticipated on the Saturday before Septuagesima (Rubricae generales IV.5).","An anticipated Sunday keeps the privileges of a Sunday in occurrence, so Saint John Bosco, Confessor gives way to it (Notanda 12).","Saint John Bosco, Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Green, for the office of the season after the octave of the Epiphany (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-01","weekday":"Sunday","principal":{"name":"Septuagesima Sunday","rank":"semidouble","priority":40,"color":"Violet","season":"Septuagesima","source":"temporal","notes":"Greater Sunday of the II class."},"options":[],"otherCandidates":[{"name":"Saint Ignatius of Antioch, Bishop and Martyr","rank":"double","priority":90,"color":"Red","season":"Septuagesima","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Septuagesima. Falling on this day: Septuagesima Sunday (greater Sunday of the II class, semidouble); and Saint Ignatius of Antioch, Bishop and Martyr (double).","A greater Sunday of the II class yields only to a double of the I class (Additiones IV.1; Tabella).","Saint Ignatius of Antioch, Bishop and Martyr is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-02","weekday":"Monday","principal":{"name":"Purification of the Blessed Virgin Mary","rank":"double_2","priority":50,"color":"White","season":"Septuagesima","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: Purification of the Blessed Virgin Mary (double of the II class).","Purification of the Blessed Virgin Mary is the office of the day.","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-03","weekday":"Tuesday","principal":{"name":"Saint Blaise, Bishop and Martyr","rank":"simple","priority":150,"color":"Red","season":"Septuagesima","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: Saint Blaise, Bishop and Martyr (simple).","Saint Blaise, Bishop and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-04","weekday":"Wednesday","principal":{"name":"Saint Andrew Corsini, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Septuagesima","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: Saint Andrew Corsini, Bishop and Confessor (double).","Saint Andrew Corsini, Bishop and Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-05","weekday":"Thursday","principal":{"name":"Saint Agatha, Virgin and Martyr","rank":"double","priority":90,"color":"Red","season":"Septuagesima","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: Saint Agatha, Virgin and Martyr (double).","Saint Agatha, Virgin and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-06","weekday":"Friday","principal":{"name":"Saint Titus, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Septuagesima","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Dorothy, Virgin and Martyr","rank":"simple","priority":155,"color":"Red","season":"Septuagesima","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Septuagesima. Falling on this day: Saint Titus, Bishop and Confessor (double); and Saint Dorothy, Virgin and Martyr (commemoration only).","Saint Titus, Bishop and Confessor is the office of the day.","Saint Dorothy, Virgin and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-07","weekday":"Saturday","principal":{"name":"Saint Romuald, Abbot","rank":"double","priority":90,"color":"White","season":"Septuagesima","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: Saint Romuald, Abbot (double).","Saint Romuald, Abbot is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-08","weekday":"Sunday","principal":{"name":"Sexagesima Sunday","rank":"semidouble","priority":40,"color":"Violet","season":"Septuagesima","source":"temporal","notes":"Greater Sunday of the II class."},"options":[],"otherCandidates":[{"name":"Saint John of Matha, Confessor","rank":"double","priority":90,"color":"White","season":"Septuagesima","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Septuagesima. Falling on this day: Sexagesima Sunday (greater Sunday of the II class, semidouble); and Saint John of Matha, Confessor (double).","A greater Sunday of the II class yields only to a double of the I class (Additiones IV.1; Tabella).","Saint John of Matha, Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-09","weekday":"Monday","principal":{"name":"Saint Cyril of Alexandria, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Septuagesima","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Apollonia, Virgin and Martyr","rank":"simple","priority":155,"color":"Red","season":"Septuagesima","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Septuagesima. Falling on this day: Saint Cyril of Alexandria, Bishop, Confessor and Doctor of the Church (double); and Saint Apollonia, Virgin and Martyr (commemoration only).","Saint Cyril of Alexandria, Bishop, Confessor and Doctor of the Church is the office of the day.","Saint Apollonia, Virgin and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-10","weekday":"Tuesday","principal":{"name":"Saint Scholastica, Virgin","rank":"double","priority":90,"color":"White","season":"Septuagesima","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: Saint Scholastica, Virgin (double).","Saint Scholastica, Virgin is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-11","weekday":"Wednesday","principal":{"name":"Apparition of the Immaculate Virgin Mary at Lourdes","rank":"greater_double","priority":80,"color":"White","season":"Septuagesima","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: Apparition of the Immaculate Virgin Mary at Lourdes (greater double).","Apparition of the Immaculate Virgin Mary at Lourdes is the office of the day.","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-12","weekday":"Thursday","principal":{"name":"The Seven Holy Founders of the Servite Order, Confessors","rank":"double","priority":90,"color":"White","season":"Septuagesima","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: The Seven Holy Founders of the Servite Order, Confessors (double).","The Seven Holy Founders of the Servite Order, Confessors is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-13","weekday":"Friday","principal":{"name":"Friday (feria)","rank":"simple","priority":170,"color":"Violet","season":"Septuagesima","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: Friday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-14","weekday":"Saturday","principal":{"name":"Saint Mary on Saturday","rank":"simple","priority":145,"color":"White","season":"Septuagesima","source":"temporal","notes":""},"options":[],"otherCandidates":[{"name":"Saint Valentine, Priest and Martyr","rank":"simple","priority":150,"color":"Red","season":"Septuagesima","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Septuagesima. Falling on this day: Saint Mary on Saturday (simple); and Saint Valentine, Priest and Martyr (simple).","On a Saturday outside Advent and Lent the Office of Saint Mary is said in place of a simple feast (Rubricae generales VIII.1).","Saint Valentine, Priest and Martyr is commemorated at Lauds and Mass: a simple feast on a Saturday is commemorated in the Office of Saint Mary (Rubricae generales VIII.1).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-15","weekday":"Sunday","principal":{"name":"Quinquagesima Sunday","rank":"semidouble","priority":40,"color":"Violet","season":"Septuagesima","source":"temporal","notes":"Greater Sunday of the II class."},"options":[],"otherCandidates":[{"name":"Saints Faustinus and Jovita, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Septuagesima","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Septuagesima. Falling on this day: Quinquagesima Sunday (greater Sunday of the II class, semidouble); and Saints Faustinus and Jovita, Martyrs (simple).","A greater Sunday of the II class yields only to a double of the I class (Additiones IV.1; Tabella).","Saints Faustinus and Jovita, Martyrs is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-16","weekday":"Monday","principal":{"name":"Monday (feria)","rank":"simple","priority":170,"color":"Violet","season":"Septuagesima","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: Monday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-17","weekday":"Tuesday","principal":{"name":"Tuesday (feria)","rank":"simple","priority":170,"color":"Violet","season":"Septuagesima","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Septuagesima. One office falls on this day: Tuesday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-18","weekday":"Wednesday","principal":{"name":"Ash Wednesday","rank":"simple","priority":21,"color":"Violet","season":"Lent","source":"temporal","notes":"Privileged greater feria."},"options":[],"otherCandidates":[{"name":"Saint Simeon, Bishop and Martyr","rank":"simple","priority":150,"color":"Red","season":"Lent","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Ash Wednesday (privileged feria); and Saint Simeon, Bishop and Martyr (simple).","Ash Wednesday and the ferias of Holy Week are privileged ferias, preferred to any feast (Tabella).","Saint Simeon, Bishop and Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-19","weekday":"Thursday","principal":{"name":"Thursday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Thursday of Lent (greater feria).","Thursday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-20","weekday":"Friday","principal":{"name":"Friday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Friday of Lent (greater feria).","Friday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-21","weekday":"Saturday","principal":{"name":"Saturday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Saturday of Lent (greater feria).","Saturday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-22","weekday":"Sunday","principal":{"name":"First Sunday of Lent","rank":"semidouble","priority":20,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater Sunday of the I class."},"options":[],"otherCandidates":[{"name":"Chair of Saint Peter at Antioch","rank":"greater_double","priority":80,"color":"White","season":"Lent","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Paul, Apostle","rank":"simple","priority":155,"color":"White","season":"Lent","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: First Sunday of Lent (greater Sunday of the I class, semidouble); Chair of Saint Peter at Antioch (greater double); and Saint Paul, Apostle (commemoration only).","A greater Sunday of the I class is preferred to any feast, even a double of the I class (Additiones IV.1; Tabella).","Chair of Saint Peter at Antioch is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Saint Paul, Apostle is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Chair of Saint Peter at Antioch; and Saint Paul, Apostle (Additiones VII.5).","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-23","weekday":"Monday","principal":{"name":"Saint Peter Damian, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Monday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."},{"name":"Vigil of Saint Matthias","rank":"simple","priority":130,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Mass only)."}],"reasoning":["Lent. Falling on this day: Saint Peter Damian, Bishop, Confessor and Doctor of the Church (double); Monday of Lent (greater feria); and Vigil of Saint Matthias (vigil, simple).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Monday of Lent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Vigil of Saint Matthias is commemorated at Mass only: a vigil falling in Advent, Lent or the Ember days is not commemorated in the Office (Rubricae generales VI.2), but it is at Mass (Additiones Missalis V.1).","The commemorations are made in this order: Monday of Lent; and Vigil of Saint Matthias (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-24","weekday":"Tuesday","principal":{"name":"Saint Matthias, Apostle","rank":"double_2","priority":50,"color":"Red","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Tuesday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saint Matthias, Apostle (double of the II class); and Tuesday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Tuesday of Lent is commemorated at Lauds and Mass: a double of the II class admits a greater feria (Additiones VII.2).","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-25","weekday":"Wednesday","principal":{"name":"Ember Wednesday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Ember Wednesday of Lent (greater feria).","Ember Wednesday of Lent is the office of the day.","Colour: Violet, for Ember days and fasting vigils (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-26","weekday":"Thursday","principal":{"name":"Thursday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Thursday of Lent (greater feria).","Thursday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-27","weekday":"Friday","principal":{"name":"Saint Gabriel of Our Lady of Sorrows, Confessor","rank":"double","priority":90,"color":"White","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Ember Friday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saint Gabriel of Our Lady of Sorrows, Confessor (double); and Ember Friday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Ember Friday of Lent is commemorated at Lauds and Mass: a greater feria yielding to an office of nine lessons is commemorated (Notanda 15).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-02-28","weekday":"Saturday","principal":{"name":"Ember Saturday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Ember Saturday of Lent (greater feria).","Ember Saturday of Lent is the office of the day.","Colour: Violet, for Ember days and fasting vigils (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-01","weekday":"Sunday","principal":{"name":"Second Sunday of Lent","rank":"semidouble","priority":20,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater Sunday of the I class."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Second Sunday of Lent (greater Sunday of the I class, semidouble).","Second Sunday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-02","weekday":"Monday","principal":{"name":"Monday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Monday of Lent (greater feria).","Monday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-03","weekday":"Tuesday","principal":{"name":"Tuesday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Tuesday of Lent (greater feria).","Tuesday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-04","weekday":"Wednesday","principal":{"name":"Saint Casimir, Confessor","rank":"semidouble","priority":100,"color":"White","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Wednesday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Lucius I, Pope and Martyr","rank":"simple","priority":155,"color":"Red","season":"Lent","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saint Casimir, Confessor (semidouble); Wednesday of Lent (greater feria); and Saint Lucius I, Pope and Martyr (commemoration only).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Wednesday of Lent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Saint Lucius I, Pope and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Wednesday of Lent; and Saint Lucius I, Pope and Martyr (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-05","weekday":"Thursday","principal":{"name":"Thursday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Thursday of Lent (greater feria).","Thursday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-06","weekday":"Friday","principal":{"name":"Saints Perpetua and Felicity, Martyrs","rank":"double","priority":90,"color":"Red","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Friday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saints Perpetua and Felicity, Martyrs (double); and Friday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Friday of Lent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-07","weekday":"Saturday","principal":{"name":"Saint Thomas Aquinas, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saturday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saint Thomas Aquinas, Confessor and Doctor of the Church (double); and Saturday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Saturday of Lent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-08","weekday":"Sunday","principal":{"name":"Third Sunday of Lent","rank":"semidouble","priority":20,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater Sunday of the I class."},"options":[],"otherCandidates":[{"name":"Saint John of God, Confessor","rank":"double","priority":90,"color":"White","season":"Lent","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Third Sunday of Lent (greater Sunday of the I class, semidouble); and Saint John of God, Confessor (double).","A greater Sunday of the I class is preferred to any feast, even a double of the I class (Additiones IV.1; Tabella).","Saint John of God, Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-09","weekday":"Monday","principal":{"name":"Saint Frances of Rome, Widow","rank":"double","priority":90,"color":"White","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Monday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saint Frances of Rome, Widow (double); and Monday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Monday of Lent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-10","weekday":"Tuesday","principal":{"name":"The Forty Holy Martyrs","rank":"semidouble","priority":100,"color":"Red","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Tuesday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: The Forty Holy Martyrs (semidouble); and Tuesday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Tuesday of Lent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-11","weekday":"Wednesday","principal":{"name":"Wednesday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Wednesday of Lent (greater feria).","Wednesday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-12","weekday":"Thursday","principal":{"name":"Saint Gregory the Great, Pope, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Thursday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saint Gregory the Great, Pope, Confessor and Doctor of the Church (double); and Thursday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Thursday of Lent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-13","weekday":"Friday","principal":{"name":"Friday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Friday of Lent (greater feria).","Friday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-14","weekday":"Saturday","principal":{"name":"Saturday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Saturday of Lent (greater feria).","Saturday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-15","weekday":"Sunday","principal":{"name":"Fourth Sunday of Lent (Laetare)","rank":"semidouble","priority":20,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater Sunday of the I class."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Fourth Sunday of Lent (Laetare) (greater Sunday of the I class, semidouble).","Fourth Sunday of Lent (Laetare) is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-16","weekday":"Monday","principal":{"name":"Monday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Monday of Lent (greater feria).","Monday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-17","weekday":"Tuesday","principal":{"name":"Saint Patrick, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Tuesday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saint Patrick, Bishop and Confessor (double); and Tuesday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Tuesday of Lent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-18","weekday":"Wednesday","principal":{"name":"Saint Cyril of Jerusalem, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Wednesday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saint Cyril of Jerusalem, Bishop, Confessor and Doctor of the Church (double); and Wednesday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Wednesday of Lent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-19","weekday":"Thursday","principal":{"name":"Saint Joseph, Spouse of the Blessed Virgin Mary, Confessor","rank":"double_1","priority":30,"color":"White","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Thursday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saint Joseph, Spouse of the Blessed Virgin Mary, Confessor (double of the I class); and Thursday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Thursday of Lent is commemorated at Lauds and Mass: a double of the I class admits a greater feria (Additiones VII.1).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-20","weekday":"Friday","principal":{"name":"Friday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Lent. One office falls on this day: Friday of Lent (greater feria).","Friday of Lent is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-21","weekday":"Saturday","principal":{"name":"Saint Benedict, Abbot","rank":"greater_double","priority":80,"color":"White","season":"Lent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saturday of Lent","rank":"simple","priority":120,"color":"Violet","season":"Lent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Lent. Falling on this day: Saint Benedict, Abbot (greater double); and Saturday of Lent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Saturday of Lent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-22","weekday":"Sunday","principal":{"name":"Passion Sunday","rank":"semidouble","priority":20,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Greater Sunday of the I class."},"options":[],"otherCandidates":[],"reasoning":["Passiontide. One office falls on this day: Passion Sunday (greater Sunday of the I class, semidouble).","Passion Sunday is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-23","weekday":"Monday","principal":{"name":"Monday of Passion Week","rank":"simple","priority":120,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Passiontide. One office falls on this day: Monday of Passion Week (greater feria).","Monday of Passion Week is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-24","weekday":"Tuesday","principal":{"name":"Saint Gabriel the Archangel","rank":"greater_double","priority":80,"color":"White","season":"Passiontide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Tuesday of Passion Week","rank":"simple","priority":120,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Passiontide. Falling on this day: Saint Gabriel the Archangel (greater double); and Tuesday of Passion Week (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Tuesday of Passion Week is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for a feast of the Angels (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-25","weekday":"Wednesday","principal":{"name":"Annunciation of the Blessed Virgin Mary","rank":"double_1","priority":30,"color":"White","season":"Passiontide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Wednesday of Passion Week","rank":"simple","priority":120,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Passiontide. Falling on this day: Annunciation of the Blessed Virgin Mary (double of the I class); and Wednesday of Passion Week (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Wednesday of Passion Week is commemorated at Lauds and Mass: a double of the I class admits a greater feria (Additiones VII.1).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-26","weekday":"Thursday","principal":{"name":"Thursday of Passion Week","rank":"simple","priority":120,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Passiontide. One office falls on this day: Thursday of Passion Week (greater feria).","Thursday of Passion Week is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-27","weekday":"Friday","principal":{"name":"Seven Sorrows of the Blessed Virgin Mary","rank":"greater_double","priority":80,"color":"White","season":"Passiontide","source":"temporal","notes":""},"options":[],"otherCandidates":[{"name":"Saint John Damascene, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Passiontide","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Friday of Passion Week","rank":"simple","priority":120,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Passiontide. Falling on this day: Seven Sorrows of the Blessed Virgin Mary (greater double); Saint John Damascene, Confessor and Doctor of the Church (double); and Friday of Passion Week (greater feria).","A greater double is preferred to a double (Additiones II.1a).","Saint John Damascene, Confessor and Doctor of the Church is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Friday of Passion Week is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","The commemorations are made in this order: Saint John Damascene, Confessor and Doctor of the Church; and Friday of Passion Week (Additiones VII.5).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-28","weekday":"Saturday","principal":{"name":"Saint John Capistran, Confessor","rank":"semidouble","priority":100,"color":"White","season":"Passiontide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saturday of Passion Week","rank":"simple","priority":120,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Passiontide. Falling on this day: Saint John Capistran, Confessor (semidouble); and Saturday of Passion Week (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Saturday of Passion Week is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-29","weekday":"Sunday","principal":{"name":"Palm Sunday","rank":"semidouble","priority":20,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Greater Sunday of the I class."},"options":[],"otherCandidates":[],"reasoning":["Passiontide. One office falls on this day: Palm Sunday (greater Sunday of the I class, semidouble).","Palm Sunday is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-30","weekday":"Monday","principal":{"name":"Monday of Holy Week","rank":"simple","priority":21,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Privileged greater feria."},"options":[],"otherCandidates":[],"reasoning":["Passiontide. One office falls on this day: Monday of Holy Week (privileged feria).","Monday of Holy Week is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-03-31","weekday":"Tuesday","principal":{"name":"Tuesday of Holy Week","rank":"simple","priority":21,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Privileged greater feria."},"options":[],"otherCandidates":[],"reasoning":["Passiontide. One office falls on this day: Tuesday of Holy Week (privileged feria).","Tuesday of Holy Week is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-01","weekday":"Wednesday","principal":{"name":"Wednesday of Holy Week","rank":"simple","priority":21,"color":"Violet","season":"Passiontide","source":"temporal","notes":"Privileged greater feria."},"options":[],"otherCandidates":[],"reasoning":["Passiontide. One office falls on this day: Wednesday of Holy Week (privileged feria).","Wednesday of Holy Week is the office of the day.","Colour: Violet, the colour of the time from Septuagesima to Holy Saturday (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-02","weekday":"Thursday","principal":{"name":"Maundy Thursday","rank":"double_1","priority":10,"color":"White","season":"Passiontide","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Passiontide. Falling on this day: Maundy Thursday (double of the I class); and Saint Francis of Paola, Confessor (double).","Maundy Thursday is preferred to every other office (Tabella; Notanda 5).","Saint Francis of Paola, Confessor is not commemorated: on a primary feast of the Lord of the I class nothing is done of an impeded double or semidouble (Notanda 5).","Colour: White, for Maundy Thursday (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-03","weekday":"Friday","principal":{"name":"Good Friday","rank":"double_1","priority":10,"color":"Black","season":"Passiontide","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Passiontide. One office falls on this day: Good Friday (double of the I class).","Good Friday is the office of the day.","Colour: Black, for Good Friday (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-04","weekday":"Saturday","principal":{"name":"Holy Saturday","rank":"double_1","priority":10,"color":"White","season":"Passiontide","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Passiontide. Falling on this day: Holy Saturday (double of the I class); and Saint Isidore, Bishop, Confessor and Doctor of the Church (double).","Holy Saturday is preferred to every other office (Tabella; Notanda 5).","Saint Isidore, Bishop, Confessor and Doctor of the Church is not commemorated: on a primary feast of the Lord of the I class nothing is done of an impeded double or semidouble (Notanda 5).","Colour: White for the Mass; the office of the day is in violet (Rubricae generales Missalis XVIII; Ordo of Gniezno, 1953)."]},{"date":"2026-04-05","weekday":"Sunday","principal":{"name":"Easter Sunday","rank":"double_1","priority":10,"color":"White","season":"Eastertide","source":"temporal","notes":"Greater Sunday of the I class."},"options":[],"otherCandidates":[],"reasoning":["Eastertide. Falling on this day: Easter Sunday (greater Sunday of the I class, double of the I class); and Saint Vincent Ferrer, Confessor (double).","A greater Sunday of the I class is preferred to any feast, even a double of the I class (Additiones IV.1; Tabella).","Saint Vincent Ferrer, Confessor is not commemorated: on a primary feast of the Lord of the I class nothing is done of an impeded double or semidouble (Notanda 5).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-06","weekday":"Monday","principal":{"name":"Easter Monday","rank":"double_1","priority":10,"color":"White","season":"Eastertide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Easter Monday (day within a privileged octave of the 1st order, double of the I class).","Easter Monday is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-07","weekday":"Tuesday","principal":{"name":"Easter Tuesday","rank":"double_1","priority":10,"color":"White","season":"Eastertide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Easter Tuesday (day within a privileged octave of the 1st order, double of the I class).","Easter Tuesday is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-08","weekday":"Wednesday","principal":{"name":"Wednesday within the Octave of Easter","rank":"semidouble","priority":23,"color":"White","season":"Eastertide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Wednesday within the Octave of Easter (day within a privileged octave of the 1st order, semidouble).","Wednesday within the Octave of Easter is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-09","weekday":"Thursday","principal":{"name":"Thursday within the Octave of Easter","rank":"semidouble","priority":23,"color":"White","season":"Eastertide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Thursday within the Octave of Easter (day within a privileged octave of the 1st order, semidouble).","Thursday within the Octave of Easter is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-10","weekday":"Friday","principal":{"name":"Friday within the Octave of Easter","rank":"semidouble","priority":23,"color":"White","season":"Eastertide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Friday within the Octave of Easter (day within a privileged octave of the 1st order, semidouble).","Friday within the Octave of Easter is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-11","weekday":"Saturday","principal":{"name":"Saturday within the Octave of Easter","rank":"semidouble","priority":23,"color":"White","season":"Eastertide","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Leo the Great, Pope, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saturday within the Octave of Easter (day within a privileged octave of the 1st order, semidouble); and Saint Leo the Great, Pope, Confessor and Doctor of the Church (double).","No feast is kept within the octaves of Easter and Pentecost (Tabella; Rubricae generales VII.3).","Saint Leo the Great, Pope, Confessor and Doctor of the Church is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-12","weekday":"Sunday","principal":{"name":"Low Sunday (Octave Day of Easter)","rank":"greater_double","priority":20,"color":"White","season":"Eastertide","source":"temporal","notes":"Greater Sunday of the I class."},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Low Sunday (Octave Day of Easter) (greater Sunday of the I class, greater double).","Low Sunday (Octave Day of Easter) is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-13","weekday":"Monday","principal":{"name":"Saint Hermenegild, Martyr","rank":"semidouble","priority":100,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint Hermenegild, Martyr (semidouble).","Saint Hermenegild, Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-14","weekday":"Tuesday","principal":{"name":"Saint Justin, Martyr","rank":"double","priority":90,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saints Tiburtius, Valerian and Maximus, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saint Justin, Martyr (double); and Saints Tiburtius, Valerian and Maximus, Martyrs (commemoration only).","Saint Justin, Martyr is the office of the day.","Saints Tiburtius, Valerian and Maximus, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-15","weekday":"Wednesday","principal":{"name":"Wednesday (feria)","rank":"simple","priority":170,"color":"White","season":"Eastertide","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Wednesday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: White, for Paschaltide (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-16","weekday":"Thursday","principal":{"name":"Thursday (feria)","rank":"simple","priority":170,"color":"White","season":"Eastertide","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Thursday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: White, for Paschaltide (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-17","weekday":"Friday","principal":{"name":"Saint Anicetus, Pope and Martyr","rank":"simple","priority":150,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint Anicetus, Pope and Martyr (simple).","Saint Anicetus, Pope and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-18","weekday":"Saturday","principal":{"name":"Saint Mary on Saturday","rank":"simple","priority":145,"color":"White","season":"Eastertide","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint Mary on Saturday (simple).","Nothing of nine lessons falls on this Saturday, so the Office of Saint Mary on Saturday is said (Rubricae generales VIII.1).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-19","weekday":"Sunday","principal":{"name":"Second Sunday after Easter","rank":"semidouble","priority":60,"color":"White","season":"Eastertide","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Second Sunday after Easter (lesser Sunday, semidouble).","Second Sunday after Easter is the office of the day.","Colour: White, for Paschaltide (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-20","weekday":"Monday","principal":{"name":"Monday (feria)","rank":"simple","priority":170,"color":"White","season":"Eastertide","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Monday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: White, for Paschaltide (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-21","weekday":"Tuesday","principal":{"name":"Saint Anselm, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint Anselm, Bishop, Confessor and Doctor of the Church (double).","Saint Anselm, Bishop, Confessor and Doctor of the Church is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-22","weekday":"Wednesday","principal":{"name":"Solemnity of Saint Joseph, Patron of the Universal Church","rank":"double_1","priority":30,"color":"White","season":"Eastertide","source":"temporal","notes":""},"options":[],"otherCandidates":[{"name":"Saints Soter and Caius, Popes and Martyrs","rank":"semidouble","priority":100,"color":"Red","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Eastertide. Falling on this day: Solemnity of Saint Joseph, Patron of the Universal Church (double of the I class); and Saints Soter and Caius, Popes and Martyrs (semidouble).","A double of the I class is preferred to a semidouble (Additiones II.1a).","Saints Soter and Caius, Popes and Martyrs is commemorated at Lauds, and at Mass only in private Masses: a double of the I class admits an impeded double or semidouble at Lauds only (Additiones VII.1; Notanda 5), and at Mass only in private Masses (Additiones Missalis V.1).","Colour: White, for Paschaltide (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-23","weekday":"Thursday","principal":{"name":"Saint George, Martyr","rank":"semidouble","priority":100,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Second Day within the Octave of Saint Joseph, Patron of the Universal Church","rank":"semidouble","priority":112,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saint George, Martyr (semidouble); and Second Day within the Octave of Saint Joseph, Patron of the Universal Church (day within a common octave, semidouble).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Second Day within the Octave of Saint Joseph, Patron of the Universal Church is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-24","weekday":"Friday","principal":{"name":"Saint Fidelis of Sigmaringen, Martyr","rank":"double","priority":90,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Third Day within the Octave of Saint Joseph, Patron of the Universal Church","rank":"semidouble","priority":112,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saint Fidelis of Sigmaringen, Martyr (double); and Third Day within the Octave of Saint Joseph, Patron of the Universal Church (day within a common octave, semidouble).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Third Day within the Octave of Saint Joseph, Patron of the Universal Church is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-25","weekday":"Saturday","principal":{"name":"Saint Mark, Evangelist","rank":"double_2","priority":50,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Greater Litanies","rank":"simple","priority":155,"color":"Violet","season":"Eastertide","source":"temporal","notes":"Commemorated (Mass only)."}],"reasoning":["Eastertide. Falling on this day: Saint Mark, Evangelist (double of the II class); Fourth Day within the Octave of Saint Joseph, Patron of the Universal Church (day within a common octave, semidouble); and Greater Litanies (commemoration only).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Fourth Day within the Octave of Saint Joseph, Patron of the Universal Church is not commemorated: a double of the II class admits no commemoration of a day within a common octave (Additiones VII.2).","Greater Litanies is commemorated at Mass only: nothing of the Greater Litanies is said in the Office, but the Rogations are commemorated in the Masses of the day, even on a double of the I class (Additiones Missalis I.3–4).","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-26","weekday":"Sunday","principal":{"name":"Third Sunday after Easter","rank":"semidouble","priority":60,"color":"White","season":"Eastertide","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saints Cletus and Marcellinus, Popes and Martyrs","rank":"semidouble","priority":100,"color":"Red","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Fifth Day within the Octave of Saint Joseph, Patron of the Universal Church","rank":"semidouble","priority":112,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Third Sunday after Easter (lesser Sunday, semidouble); Saints Cletus and Marcellinus, Popes and Martyrs (semidouble); and Fifth Day within the Octave of Saint Joseph, Patron of the Universal Church (day within a common octave, semidouble).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saints Cletus and Marcellinus, Popes and Martyrs is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Fifth Day within the Octave of Saint Joseph, Patron of the Universal Church is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","The commemorations are made in this order: Saints Cletus and Marcellinus, Popes and Martyrs; and Fifth Day within the Octave of Saint Joseph, Patron of the Universal Church (Additiones VII.5).","Colour: White, for Paschaltide (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-27","weekday":"Monday","principal":{"name":"Saint Peter Canisius, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Sixth Day within the Octave of Saint Joseph, Patron of the Universal Church","rank":"semidouble","priority":112,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saint Peter Canisius, Confessor and Doctor of the Church (double); and Sixth Day within the Octave of Saint Joseph, Patron of the Universal Church (day within a common octave, semidouble).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Sixth Day within the Octave of Saint Joseph, Patron of the Universal Church is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-28","weekday":"Tuesday","principal":{"name":"Saint Paul of the Cross, Confessor","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Seventh Day within the Octave of Saint Joseph, Patron of the Universal Church","rank":"semidouble","priority":112,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Vitalis, Martyr","rank":"simple","priority":155,"color":"Red","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saint Paul of the Cross, Confessor (double); Seventh Day within the Octave of Saint Joseph, Patron of the Universal Church (day within a common octave, semidouble); and Saint Vitalis, Martyr (commemoration only).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Seventh Day within the Octave of Saint Joseph, Patron of the Universal Church is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Saint Vitalis, Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Seventh Day within the Octave of Saint Joseph, Patron of the Universal Church; and Saint Vitalis, Martyr (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-29","weekday":"Wednesday","principal":{"name":"Octave Day of Saint Joseph, Patron of the Universal Church","rank":"greater_double","priority":70,"color":"White","season":"Eastertide","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Peter of Verona, Martyr","rank":"double","priority":90,"color":"Red","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Octave Day of Saint Joseph, Patron of the Universal Church (octave day of a common octave, greater double); and Saint Peter of Verona, Martyr (double).","The octave day of a common octave is preferred to every double that is not of the I or II class (Additiones III.3; Tabella).","Saint Peter of Verona, Martyr is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Colour: White, for Paschaltide (Rubricae generales Missalis XVIII)."]},{"date":"2026-04-30","weekday":"Thursday","principal":{"name":"Saint Catherine of Siena, Virgin","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint Catherine of Siena, Virgin (double).","Saint Catherine of Siena, Virgin is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-01","weekday":"Friday","principal":{"name":"Saints Philip and James, Apostles","rank":"double_2","priority":50,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saints Philip and James, Apostles (double of the II class).","Saints Philip and James, Apostles is the office of the day.","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-02","weekday":"Saturday","principal":{"name":"Saint Athanasius, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint Athanasius, Bishop, Confessor and Doctor of the Church (double).","Saint Athanasius, Bishop, Confessor and Doctor of the Church is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-03","weekday":"Sunday","principal":{"name":"Finding of the Holy Cross","rank":"double_2","priority":50,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Fourth Sunday after Easter","rank":"semidouble","priority":60,"color":"White","season":"Eastertide","source":"temporal","notes":"Commemorated (Lauds, Vespers and Mass)."},{"name":"Saints Alexander I, Pope, Eventius and Theodulus, Martyrs, and Juvenal, Bishop and Confessor","rank":"simple","priority":155,"color":"Red","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Eastertide. Falling on this day: Finding of the Holy Cross (double of the II class); Fourth Sunday after Easter (lesser Sunday, semidouble); and Saints Alexander I, Pope, Eventius and Theodulus, Martyrs, and Juvenal, Bishop and Confessor (commemoration only).","A lesser Sunday yields to a double of the I or II class and to any feast of the Lord of nine lessons (Additiones IV.2; Notanda 10).","Fourth Sunday after Easter is commemorated at Lauds, Vespers and Mass: a double of the II class admits a lesser Sunday (Additiones VII.2).","Saints Alexander I, Pope, Eventius and Theodulus, Martyrs, and Juvenal, Bishop and Confessor is commemorated at Lauds, and at Mass only in private Masses: printed with it in the Kalendarium; a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","The commemorations are made in this order: Fourth Sunday after Easter; and Saints Alexander I, Pope, Eventius and Theodulus, Martyrs, and Juvenal, Bishop and Confessor (Additiones VII.5).","Colour: Red, for a feast of the Cross or of the Precious Blood (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-04","weekday":"Monday","principal":{"name":"Saint Monica, Widow","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint Monica, Widow (double).","Saint Monica, Widow is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-05","weekday":"Tuesday","principal":{"name":"Saint Pius V, Pope and Confessor","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint Pius V, Pope and Confessor (double).","Saint Pius V, Pope and Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-06","weekday":"Wednesday","principal":{"name":"Saint John before the Latin Gate","rank":"greater_double","priority":80,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint John before the Latin Gate (greater double).","Saint John before the Latin Gate is the office of the day.","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-07","weekday":"Thursday","principal":{"name":"Saint Stanislaus, Bishop and Martyr","rank":"double","priority":90,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint Stanislaus, Bishop and Martyr (double).","Saint Stanislaus, Bishop and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-08","weekday":"Friday","principal":{"name":"Apparition of Saint Michael the Archangel","rank":"greater_double","priority":80,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Apparition of Saint Michael the Archangel (greater double).","Apparition of Saint Michael the Archangel is the office of the day.","Colour: White, for a feast of the Angels (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-09","weekday":"Saturday","principal":{"name":"Saint Gregory Nazianzen, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Saint Gregory Nazianzen, Bishop, Confessor and Doctor of the Church (double).","Saint Gregory Nazianzen, Bishop, Confessor and Doctor of the Church is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-10","weekday":"Sunday","principal":{"name":"Fifth Sunday after Easter","rank":"semidouble","priority":60,"color":"White","season":"Eastertide","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Antoninus, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saints Gordian and Epimachus, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Fifth Sunday after Easter (lesser Sunday, semidouble); Saint Antoninus, Bishop and Confessor (double); and Saints Gordian and Epimachus, Martyrs (commemoration only).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Antoninus, Bishop and Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Saints Gordian and Epimachus, Martyrs is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Saint Antoninus, Bishop and Confessor; and Saints Gordian and Epimachus, Martyrs (Additiones VII.5).","Colour: White, for Paschaltide (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-11","weekday":"Monday","principal":{"name":"Rogation Monday","rank":"simple","priority":120,"color":"Violet","season":"Eastertide","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Rogation Monday (greater feria).","Rogation Monday is the office of the day.","Colour: Violet, for the Rogations (Rubricae generales Missalis XVIII.5)."]},{"date":"2026-05-12","weekday":"Tuesday","principal":{"name":"Saints Nereus, Achilleus, Domitilla and Pancras, Martyrs","rank":"semidouble","priority":100,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Rogation Tuesday","rank":"simple","priority":170,"color":"White","season":"Eastertide","source":"temporal","notes":"Commemorated (Mass only)."}],"reasoning":["Eastertide. Falling on this day: Saints Nereus, Achilleus, Domitilla and Pancras, Martyrs (semidouble); and Rogation Tuesday (feria).","A feria per annum gives way to any feast (Rubricae generales V.1).","Rogation Tuesday is commemorated at Mass only: nothing of Rogation Tuesday is said in the Office, but the Rogations are commemorated in the Masses of the day, even on a double of the I class (Additiones Missalis I.3–4).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-13","weekday":"Wednesday","principal":{"name":"Saint Robert Bellarmine, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Vigil of the Ascension","rank":"simple","priority":130,"color":"White","season":"Eastertide","source":"temporal","notes":"Commemorated (Lauds and Mass)."},{"name":"Rogation Wednesday","rank":"simple","priority":155,"color":"Violet","season":"Eastertide","source":"temporal","notes":"Commemorated (Mass only)."}],"reasoning":["Eastertide. Falling on this day: Saint Robert Bellarmine, Bishop, Confessor and Doctor of the Church (double); Vigil of the Ascension (vigil, simple); and Rogation Wednesday (commemoration only).","A common vigil yields to any office of nine lessons (Rubricae generales VI.1; Notanda 15).","Vigil of the Ascension is commemorated at Lauds and Mass: a common vigil yielding to an office of nine lessons is commemorated (Notanda 15).","Rogation Wednesday is commemorated at Mass only: nothing of Rogation Wednesday is said in the Office, but the Rogations are commemorated in the Masses of the day, even on a double of the I class (Additiones Missalis I.3–4).","The commemorations are made in this order: Vigil of the Ascension; and Rogation Wednesday (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-14","weekday":"Thursday","principal":{"name":"Ascension of Our Lord","rank":"double_1","priority":10,"color":"White","season":"Eastertide","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. Falling on this day: Ascension of Our Lord (double of the I class); and Saint Boniface of Tarsus, Martyr (simple).","Ascension of Our Lord is preferred to every other office (Tabella; Notanda 5).","Saint Boniface of Tarsus, Martyr is not commemorated: a double of the I class admits no commemoration of a simple (Additiones VII.1).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-15","weekday":"Friday","principal":{"name":"Saint John Baptist de la Salle, Confessor","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Second Day within the Octave of the Ascension","rank":"semidouble","priority":110,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saint John Baptist de la Salle, Confessor (double); and Second Day within the Octave of the Ascension (day within a privileged octave of the 3rd order, semidouble).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Second Day within the Octave of the Ascension is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-16","weekday":"Saturday","principal":{"name":"Saint Ubald, Bishop and Confessor","rank":"semidouble","priority":100,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Third Day within the Octave of the Ascension","rank":"semidouble","priority":110,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saint Ubald, Bishop and Confessor (semidouble); and Third Day within the Octave of the Ascension (day within a privileged octave of the 3rd order, semidouble).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Third Day within the Octave of the Ascension is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-17","weekday":"Sunday","principal":{"name":"Sunday within the Octave of the Ascension","rank":"semidouble","priority":60,"color":"White","season":"Eastertide","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Paschal Baylon, Confessor","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Fourth Day within the Octave of the Ascension","rank":"semidouble","priority":110,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Sunday within the Octave of the Ascension (lesser Sunday, semidouble); Saint Paschal Baylon, Confessor (double); and Fourth Day within the Octave of the Ascension (day within a privileged octave of the 3rd order, semidouble).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Paschal Baylon, Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Fourth Day within the Octave of the Ascension is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","The commemorations are made in this order: Saint Paschal Baylon, Confessor; and Fourth Day within the Octave of the Ascension (Additiones VII.5).","Colour: White, for Paschaltide (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-18","weekday":"Monday","principal":{"name":"Saint Venantius, Martyr","rank":"double","priority":90,"color":"Red","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Fifth Day within the Octave of the Ascension","rank":"semidouble","priority":110,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saint Venantius, Martyr (double); and Fifth Day within the Octave of the Ascension (day within a privileged octave of the 3rd order, semidouble).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Fifth Day within the Octave of the Ascension is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-19","weekday":"Tuesday","principal":{"name":"Saint Peter Celestine, Pope and Confessor","rank":"double","priority":90,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Sixth Day within the Octave of the Ascension","rank":"semidouble","priority":110,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Pudentiana, Virgin","rank":"simple","priority":155,"color":"White","season":"Eastertide","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saint Peter Celestine, Pope and Confessor (double); Sixth Day within the Octave of the Ascension (day within a privileged octave of the 3rd order, semidouble); and Saint Pudentiana, Virgin (commemoration only).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Sixth Day within the Octave of the Ascension is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","Saint Pudentiana, Virgin is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Sixth Day within the Octave of the Ascension; and Saint Pudentiana, Virgin (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-20","weekday":"Wednesday","principal":{"name":"Saint Bernardine of Siena, Confessor","rank":"semidouble","priority":100,"color":"White","season":"Eastertide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Seventh Day within the Octave of the Ascension","rank":"semidouble","priority":110,"color":"White","season":"Eastertide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Eastertide. Falling on this day: Saint Bernardine of Siena, Confessor (semidouble); and Seventh Day within the Octave of the Ascension (day within a privileged octave of the 3rd order, semidouble).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Seventh Day within the Octave of the Ascension is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-21","weekday":"Thursday","principal":{"name":"Octave Day of the Ascension","rank":"greater_double","priority":70,"color":"White","season":"Eastertide","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Octave Day of the Ascension (octave day of a privileged octave of the 3rd order, greater double).","Octave Day of the Ascension is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-22","weekday":"Friday","principal":{"name":"Friday after the Octave of the Ascension","rank":"semidouble","priority":111,"color":"White","season":"Eastertide","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Friday after the Octave of the Ascension (semidouble).","Friday after the Octave of the Ascension is the office of the day.","Colour: White, for Paschaltide (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-23","weekday":"Saturday","principal":{"name":"Vigil of Pentecost","rank":"semidouble","priority":22,"color":"Red","season":"Eastertide","source":"temporal","notes":"Privileged vigil."},"options":[],"otherCandidates":[],"reasoning":["Eastertide. One office falls on this day: Vigil of Pentecost (privileged vigil of the I class, semidouble).","Vigil of Pentecost is the office of the day.","Colour: Red, from the Vigil of Pentecost to the Saturday after (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-24","weekday":"Sunday","principal":{"name":"Pentecost Sunday","rank":"double_1","priority":10,"color":"Red","season":"Pentecost Octave","source":"temporal","notes":"Greater Sunday of the I class."},"options":[],"otherCandidates":[],"reasoning":["Pentecost Octave. One office falls on this day: Pentecost Sunday (greater Sunday of the I class, double of the I class).","Pentecost Sunday is the office of the day.","Colour: Red, from the Vigil of Pentecost to the Saturday after (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-25","weekday":"Monday","principal":{"name":"Pentecost Monday","rank":"double_1","priority":10,"color":"Red","season":"Pentecost Octave","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Pentecost Octave. Falling on this day: Pentecost Monday (day within a privileged octave of the 1st order, double of the I class); Saint Gregory VII, Pope and Confessor (double); and Saint Urban I, Pope and Martyr (commemoration only).","Pentecost Monday is preferred to every other office (Tabella; Notanda 5).","Saint Gregory VII, Pope and Confessor is not commemorated: on a primary feast of the Lord of the I class nothing is done of an impeded double or semidouble (Notanda 5).","Saint Urban I, Pope and Martyr is not commemorated: a double of the I class admits no commemoration of a simple (Additiones VII.1).","Colour: Red, from the Vigil of Pentecost to the Saturday after (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-26","weekday":"Tuesday","principal":{"name":"Pentecost Tuesday","rank":"double_1","priority":10,"color":"Red","season":"Pentecost Octave","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Pentecost Octave. Falling on this day: Pentecost Tuesday (day within a privileged octave of the 1st order, double of the I class); Saint Philip Neri, Confessor (double); and Saint Eleutherius, Pope and Martyr (commemoration only).","Pentecost Tuesday is preferred to every other office (Tabella; Notanda 5).","Saint Philip Neri, Confessor is not commemorated: on a primary feast of the Lord of the I class nothing is done of an impeded double or semidouble (Notanda 5).","Saint Eleutherius, Pope and Martyr is not commemorated: a double of the I class admits no commemoration of a simple (Additiones VII.1).","Colour: Red, from the Vigil of Pentecost to the Saturday after (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-27","weekday":"Wednesday","principal":{"name":"Ember Wednesday within the Octave of Pentecost","rank":"semidouble","priority":23,"color":"Red","season":"Pentecost Octave","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Bede the Venerable, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Pentecost Octave","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint John I, Pope and Martyr","rank":"simple","priority":155,"color":"Red","season":"Pentecost Octave","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Pentecost Octave. Falling on this day: Ember Wednesday within the Octave of Pentecost (day within a privileged octave of the 1st order, semidouble); Saint Bede the Venerable, Confessor and Doctor of the Church (double); and Saint John I, Pope and Martyr (commemoration only).","No feast is kept within the octaves of Easter and Pentecost (Tabella; Rubricae generales VII.3).","Saint Bede the Venerable, Confessor and Doctor of the Church is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Saint John I, Pope and Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Saint Bede the Venerable, Confessor and Doctor of the Church; and Saint John I, Pope and Martyr (Additiones VII.5).","Colour: Red, from the Vigil of Pentecost to the Saturday after (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-28","weekday":"Thursday","principal":{"name":"Thursday within the Octave of Pentecost","rank":"semidouble","priority":23,"color":"Red","season":"Pentecost Octave","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Augustine of Canterbury, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Pentecost Octave","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Pentecost Octave. Falling on this day: Thursday within the Octave of Pentecost (day within a privileged octave of the 1st order, semidouble); and Saint Augustine of Canterbury, Bishop and Confessor (double).","No feast is kept within the octaves of Easter and Pentecost (Tabella; Rubricae generales VII.3).","Saint Augustine of Canterbury, Bishop and Confessor is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Colour: Red, from the Vigil of Pentecost to the Saturday after (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-29","weekday":"Friday","principal":{"name":"Ember Friday within the Octave of Pentecost","rank":"semidouble","priority":23,"color":"Red","season":"Pentecost Octave","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Mary Magdalene de Pazzi, Virgin","rank":"semidouble","priority":100,"color":"White","season":"Pentecost Octave","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Pentecost Octave. Falling on this day: Ember Friday within the Octave of Pentecost (day within a privileged octave of the 1st order, semidouble); and Saint Mary Magdalene de Pazzi, Virgin (semidouble).","No feast is kept within the octaves of Easter and Pentecost (Tabella; Rubricae generales VII.3).","Saint Mary Magdalene de Pazzi, Virgin is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Colour: Red, from the Vigil of Pentecost to the Saturday after (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-30","weekday":"Saturday","principal":{"name":"Ember Saturday within the Octave of Pentecost","rank":"semidouble","priority":23,"color":"Red","season":"Pentecost Octave","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Felix I, Pope and Martyr","rank":"simple","priority":150,"color":"Red","season":"Pentecost Octave","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Pentecost Octave. Falling on this day: Ember Saturday within the Octave of Pentecost (day within a privileged octave of the 1st order, semidouble); and Saint Felix I, Pope and Martyr (simple).","No feast is kept within the octaves of Easter and Pentecost (Tabella; Rubricae generales VII.3).","Saint Felix I, Pope and Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Red, from the Vigil of Pentecost to the Saturday after (Rubricae generales Missalis XVIII)."]},{"date":"2026-05-31","weekday":"Sunday","principal":{"name":"Most Holy Trinity","rank":"double_1","priority":30,"color":"White","season":"Time after Pentecost","source":"temporal","notes":"Queenship of the Blessed Virgin Mary is impeded and transferred."},"options":[],"otherCandidates":[{"name":"First Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Most Holy Trinity (double of the I class); Queenship of the Blessed Virgin Mary (double of the II class); First Sunday after Pentecost (lesser Sunday, semidouble); and Saint Petronilla, Virgin (commemoration only).","A double of the I class is preferred to a double of the II class (Additiones II.1a).","Queenship of the Blessed Virgin Mary cannot be kept today; as a double of the II class it is transferred to 1 June (Additiones IV.3).","First Sunday after Pentecost is commemorated at Lauds, Vespers and Mass: a double of the I class admits the commemoration of any Sunday (Additiones VII.1).","Saint Petronilla, Virgin is not commemorated: a double of the I class admits no commemoration of a simple (Additiones VII.1).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-01","weekday":"Monday","principal":{"name":"Queenship of the Blessed Virgin Mary","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"transferred","notes":"Transferred from 2026-05-31."},"options":[],"otherCandidates":[{"name":"Saint Angela Merici, Virgin","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Queenship of the Blessed Virgin Mary (double of the II class), transferred from 31 May; and Saint Angela Merici, Virgin (double).","Queenship of the Blessed Virgin Mary was impeded on 31 May and is kept here, the first following day free of a double of the I or II class, a Sunday, a privileged vigil and any office that excludes it (Additiones IV.3).","Saint Angela Merici, Virgin is commemorated at Lauds, Vespers and Mass: a double of the II class admits any double or semidouble (Additiones VII.2).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-02","weekday":"Tuesday","principal":{"name":"Saints Marcellinus, Peter and Erasmus, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saints Marcellinus, Peter and Erasmus, Martyrs (simple).","Saints Marcellinus, Peter and Erasmus, Martyrs is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-03","weekday":"Wednesday","principal":{"name":"Wednesday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Wednesday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-04","weekday":"Thursday","principal":{"name":"Corpus Christi","rank":"double_1","priority":30,"color":"White","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. Falling on this day: Corpus Christi (double of the I class); and Saint Francis Caracciolo, Confessor (double).","A double of the I class is preferred to a double (Additiones II.1a).","Saint Francis Caracciolo, Confessor is not commemorated: on a primary feast of the Lord of the I class nothing is done of an impeded double or semidouble (Notanda 5).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-05","weekday":"Friday","principal":{"name":"Second Day within the Octave of Corpus Christi","rank":"semidouble","priority":42,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Boniface, Bishop and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Second Day within the Octave of Corpus Christi (day within a privileged octave of the 2nd order, semidouble); and Saint Boniface, Bishop and Martyr (double).","Days within the octaves of the Epiphany and Corpus Christi yield only to a double of the I class (Tabella; Additiones III.2).","Saint Boniface, Bishop and Martyr is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-06","weekday":"Saturday","principal":{"name":"Third Day within the Octave of Corpus Christi","rank":"semidouble","priority":42,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Norbert, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Third Day within the Octave of Corpus Christi (day within a privileged octave of the 2nd order, semidouble); and Saint Norbert, Bishop and Confessor (double).","Days within the octaves of the Epiphany and Corpus Christi yield only to a double of the I class (Tabella; Additiones III.2).","Saint Norbert, Bishop and Confessor is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-07","weekday":"Sunday","principal":{"name":"Second Sunday after Pentecost","rank":"semidouble","priority":41,"color":"White","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Fourth Day within the Octave of Corpus Christi","rank":"semidouble","priority":42,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Second Sunday after Pentecost (lesser Sunday, semidouble); and Fourth Day within the Octave of Corpus Christi (day within a privileged octave of the 2nd order, semidouble).","The Sunday within the octave is said in preference to the day within the octave (Additiones IV.5).","Fourth Day within the Octave of Corpus Christi is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Colour: White, for the Sunday within the octave of Corpus Christi or of the Sacred Heart (Additiones Missalis X.1)."]},{"date":"2026-06-08","weekday":"Monday","principal":{"name":"Fifth Day within the Octave of Corpus Christi","rank":"semidouble","priority":42,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Fifth Day within the Octave of Corpus Christi (day within a privileged octave of the 2nd order, semidouble).","Fifth Day within the Octave of Corpus Christi is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-09","weekday":"Tuesday","principal":{"name":"Sixth Day within the Octave of Corpus Christi","rank":"semidouble","priority":42,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saints Primus and Felician, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Sixth Day within the Octave of Corpus Christi (day within a privileged octave of the 2nd order, semidouble); and Saints Primus and Felician, Martyrs (simple).","Days within the octaves of the Epiphany and Corpus Christi yield only to a double of the I class (Tabella; Additiones III.2).","Saints Primus and Felician, Martyrs is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-10","weekday":"Wednesday","principal":{"name":"Seventh Day within the Octave of Corpus Christi","rank":"semidouble","priority":42,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Margaret, Queen of Scotland, Widow","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Seventh Day within the Octave of Corpus Christi (day within a privileged octave of the 2nd order, semidouble); and Saint Margaret, Queen of Scotland, Widow (semidouble).","Days within the octaves of the Epiphany and Corpus Christi yield only to a double of the I class (Tabella; Additiones III.2).","Saint Margaret, Queen of Scotland, Widow is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-11","weekday":"Thursday","principal":{"name":"Octave Day of Corpus Christi","rank":"greater_double","priority":43,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Barnabas, Apostle","rank":"greater_double","priority":80,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Octave Day of Corpus Christi (octave day of a privileged octave of the 2nd order, greater double); and Saint Barnabas, Apostle (greater double).","The octave day of the Epiphany or of Corpus Christi is preferred to every office below a double of the I class (Tabella; Additiones III.2).","Saint Barnabas, Apostle is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-12","weekday":"Friday","principal":{"name":"Most Sacred Heart of Jesus","rank":"double_1","priority":30,"color":"White","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. Falling on this day: Most Sacred Heart of Jesus (double of the I class); Saint John of San Facundo, Confessor (double); and Saints Basilides, Cyrinus, Nabor and Nazarius, Martyrs (commemoration only).","A double of the I class is preferred to a double (Additiones II.1a).","Saint John of San Facundo, Confessor is not commemorated: on a primary feast of the Lord of the I class nothing is done of an impeded double or semidouble (Notanda 5).","Saints Basilides, Cyrinus, Nabor and Nazarius, Martyrs is not commemorated: a double of the I class admits no commemoration of a simple (Additiones VII.1).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-13","weekday":"Saturday","principal":{"name":"Saint Anthony of Padua, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Second Day within the Octave of the Sacred Heart","rank":"semidouble","priority":110,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Anthony of Padua, Confessor and Doctor of the Church (double); and Second Day within the Octave of the Sacred Heart (day within a privileged octave of the 3rd order, semidouble).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Second Day within the Octave of the Sacred Heart is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-14","weekday":"Sunday","principal":{"name":"Third Sunday after Pentecost","rank":"semidouble","priority":60,"color":"White","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Basil the Great, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Third Day within the Octave of the Sacred Heart","rank":"semidouble","priority":110,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Third Sunday after Pentecost (lesser Sunday, semidouble); Saint Basil the Great, Bishop, Confessor and Doctor of the Church (double); and Third Day within the Octave of the Sacred Heart (day within a privileged octave of the 3rd order, semidouble).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Basil the Great, Bishop, Confessor and Doctor of the Church is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Third Day within the Octave of the Sacred Heart is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","The commemorations are made in this order: Saint Basil the Great, Bishop, Confessor and Doctor of the Church; and Third Day within the Octave of the Sacred Heart (Additiones VII.5).","Colour: White, for the Sunday within the octave of Corpus Christi or of the Sacred Heart (Additiones Missalis X.1)."]},{"date":"2026-06-15","weekday":"Monday","principal":{"name":"Fourth Day within the Octave of the Sacred Heart","rank":"semidouble","priority":110,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saints Vitus, Modestus and Crescentia, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Fourth Day within the Octave of the Sacred Heart (day within a privileged octave of the 3rd order, semidouble); and Saints Vitus, Modestus and Crescentia, Martyrs (simple).","A simple feast yields to any office of nine lessons (Rubricae generales III.2).","Saints Vitus, Modestus and Crescentia, Martyrs is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-16","weekday":"Tuesday","principal":{"name":"Fifth Day within the Octave of the Sacred Heart","rank":"semidouble","priority":110,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Fifth Day within the Octave of the Sacred Heart (day within a privileged octave of the 3rd order, semidouble).","Fifth Day within the Octave of the Sacred Heart is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-17","weekday":"Wednesday","principal":{"name":"Sixth Day within the Octave of the Sacred Heart","rank":"semidouble","priority":110,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Sixth Day within the Octave of the Sacred Heart (day within a privileged octave of the 3rd order, semidouble).","Sixth Day within the Octave of the Sacred Heart is the office of the day.","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-18","weekday":"Thursday","principal":{"name":"Saint Ephrem the Syrian, Deacon, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Seventh Day within the Octave of the Sacred Heart","rank":"semidouble","priority":110,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."},{"name":"Saints Mark and Marcellian, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Ephrem the Syrian, Deacon, Confessor and Doctor of the Church (double); Seventh Day within the Octave of the Sacred Heart (day within a privileged octave of the 3rd order, semidouble); and Saints Mark and Marcellian, Martyrs (commemoration only).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Seventh Day within the Octave of the Sacred Heart is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","Saints Mark and Marcellian, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Seventh Day within the Octave of the Sacred Heart; and Saints Mark and Marcellian, Martyrs (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-19","weekday":"Friday","principal":{"name":"Octave Day of the Sacred Heart","rank":"greater_double","priority":70,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Juliana Falconieri, Virgin","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saints Gervase and Protase, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Octave Day of the Sacred Heart (octave day of a privileged octave of the 3rd order, greater double); Saint Juliana Falconieri, Virgin (double); and Saints Gervase and Protase, Martyrs (commemoration only).","The octave day of a common octave is preferred to every double that is not of the I or II class (Additiones III.3; Tabella).","Saint Juliana Falconieri, Virgin is commemorated at Lauds and Mass: a double or semidouble of the universal calendar is not transferred but commemorated (Additiones IV.4).","Saints Gervase and Protase, Martyrs is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Saint Juliana Falconieri, Virgin; and Saints Gervase and Protase, Martyrs (Additiones VII.5).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-20","weekday":"Saturday","principal":{"name":"Saint Mary on Saturday","rank":"simple","priority":145,"color":"White","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[{"name":"Saint Silverius, Pope and Martyr","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Mary on Saturday (simple); and Saint Silverius, Pope and Martyr (simple).","On a Saturday outside Advent and Lent the Office of Saint Mary is said in place of a simple feast (Rubricae generales VIII.1).","Saint Silverius, Pope and Martyr is commemorated at Lauds and Mass: a simple feast on a Saturday is commemorated in the Office of Saint Mary (Rubricae generales VIII.1).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-21","weekday":"Sunday","principal":{"name":"Fourth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Aloysius Gonzaga, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Fourth Sunday after Pentecost (lesser Sunday, semidouble); and Saint Aloysius Gonzaga, Confessor (double).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Aloysius Gonzaga, Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-22","weekday":"Monday","principal":{"name":"Saint Paulinus of Nola, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Paulinus of Nola, Bishop and Confessor (double).","Saint Paulinus of Nola, Bishop and Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-23","weekday":"Tuesday","principal":{"name":"Vigil of the Nativity of Saint John the Baptist","rank":"simple","priority":130,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Vigil."},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Vigil of the Nativity of Saint John the Baptist (vigil, simple).","Vigil of the Nativity of Saint John the Baptist is the office of the day.","Colour: Violet, for Ember days and fasting vigils (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-24","weekday":"Wednesday","principal":{"name":"Nativity of Saint John the Baptist","rank":"double_1","priority":30,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Nativity of Saint John the Baptist (double of the I class).","Nativity of Saint John the Baptist is the office of the day.","Colour: White, for the Nativity of Saint John the Baptist (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-25","weekday":"Thursday","principal":{"name":"Saint William, Abbot","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Second Day within the Octave of the Nativity of Saint John the Baptist","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint William, Abbot (double); and Second Day within the Octave of the Nativity of Saint John the Baptist (day within a common octave, semidouble).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Second Day within the Octave of the Nativity of Saint John the Baptist is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-26","weekday":"Friday","principal":{"name":"Saints John and Paul, Martyrs","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Third Day within the Octave of the Nativity of Saint John the Baptist","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saints John and Paul, Martyrs (double); and Third Day within the Octave of the Nativity of Saint John the Baptist (day within a common octave, semidouble).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Third Day within the Octave of the Nativity of Saint John the Baptist is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-27","weekday":"Saturday","principal":{"name":"Fourth Day within the Octave of the Nativity of Saint John the Baptist","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Vigil of Saints Peter and Paul (anticipated)","rank":"simple","priority":130,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Fourth Day within the Octave of the Nativity of Saint John the Baptist (day within a common octave, semidouble); and Vigil of Saints Peter and Paul (anticipated) (vigil, simple).","A common vigil yields to any office of nine lessons (Rubricae generales VI.1; Notanda 15).","Vigil of Saints Peter and Paul (anticipated) is commemorated at Lauds and Mass: a common vigil yielding to an office of nine lessons is commemorated (Notanda 15).","Colour: White, the colour of the feast whose octave it is (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-28","weekday":"Sunday","principal":{"name":"Fifth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Irenaeus, Bishop and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Fifth Day within the Octave of the Nativity of Saint John the Baptist","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Fifth Sunday after Pentecost (lesser Sunday, semidouble); Saint Irenaeus, Bishop and Martyr (double); and Fifth Day within the Octave of the Nativity of Saint John the Baptist (day within a common octave, semidouble).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Irenaeus, Bishop and Martyr is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Fifth Day within the Octave of the Nativity of Saint John the Baptist is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","The commemorations are made in this order: Saint Irenaeus, Bishop and Martyr; and Fifth Day within the Octave of the Nativity of Saint John the Baptist (Additiones VII.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-29","weekday":"Monday","principal":{"name":"Saints Peter and Paul, Apostles","rank":"double_1","priority":30,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. Falling on this day: Saints Peter and Paul, Apostles (double of the I class); and Sixth Day within the Octave of the Nativity of Saint John the Baptist (day within a common octave, semidouble).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Sixth Day within the Octave of the Nativity of Saint John the Baptist is not commemorated: a double of the I class admits no commemoration of a day within a common octave (Additiones VII.1).","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-06-30","weekday":"Tuesday","principal":{"name":"Commemoration of Saint Paul, Apostle","rank":"greater_double","priority":80,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Peter, Apostle","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Seventh Day within the Octave of the Nativity of Saint John the Baptist","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Commemoration of Saint Paul, Apostle (greater double); Seventh Day within the Octave of the Nativity of Saint John the Baptist (day within a common octave, semidouble); Second Day within the Octave of Saints Peter and Paul (day within a common octave, semidouble); and Saint Peter, Apostle (commemoration only).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Seventh Day within the Octave of the Nativity of Saint John the Baptist is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Second Day within the Octave of Saints Peter and Paul is omitted: when two offices of the same Person meet, the nobler is said and the other omitted (Additiones IV.7; Notanda 8).","Saint Peter, Apostle is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Saint Peter, Apostle; and Seventh Day within the Octave of the Nativity of Saint John the Baptist (Additiones VII.5).","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-01","weekday":"Wednesday","principal":{"name":"Most Precious Blood of Our Lord Jesus Christ","rank":"double_1","priority":30,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Octave Day of the Nativity of Saint John the Baptist","rank":"greater_double","priority":70,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Time after Pentecost. Falling on this day: Most Precious Blood of Our Lord Jesus Christ (double of the I class); Octave Day of the Nativity of Saint John the Baptist (octave day of a common octave, greater double); and Third Day within the Octave of Saints Peter and Paul (day within a common octave, semidouble).","The octave day of a common octave, or of one of the 3rd order, yields only to a double of the I or II class (Additiones III.3; Tabella).","Octave Day of the Nativity of Saint John the Baptist is commemorated at Lauds, and at Mass only in private Masses: a double of the I class admits an impeded double or semidouble at Lauds only (Additiones VII.1; Notanda 5), and at Mass only in private Masses (Additiones Missalis V.1).","Third Day within the Octave of Saints Peter and Paul is not commemorated: a double of the I class admits no commemoration of a day within a common octave (Additiones VII.1).","Colour: Red, for a feast of the Cross or of the Precious Blood (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-02","weekday":"Thursday","principal":{"name":"Visitation of the Blessed Virgin Mary","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saints Processus and Martinian, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Time after Pentecost. Falling on this day: Visitation of the Blessed Virgin Mary (double of the II class); Fourth Day within the Octave of Saints Peter and Paul (day within a common octave, semidouble); and Saints Processus and Martinian, Martyrs (commemoration only).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Fourth Day within the Octave of Saints Peter and Paul is not commemorated: a double of the II class admits no commemoration of a day within a common octave (Additiones VII.2).","Saints Processus and Martinian, Martyrs is commemorated at Lauds, and at Mass only in private Masses: printed with it in the Kalendarium; a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-03","weekday":"Friday","principal":{"name":"Saint Leo II, Pope and Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Fifth Day within the Octave of Saints Peter and Paul","rank":"semidouble","priority":112,"color":"Red","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Leo II, Pope and Confessor (semidouble); and Fifth Day within the Octave of Saints Peter and Paul (day within a common octave, semidouble).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Fifth Day within the Octave of Saints Peter and Paul is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-04","weekday":"Saturday","principal":{"name":"Sixth Day within the Octave of Saints Peter and Paul","rank":"semidouble","priority":112,"color":"Red","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Sixth Day within the Octave of Saints Peter and Paul (day within a common octave, semidouble).","Sixth Day within the Octave of Saints Peter and Paul is the office of the day.","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-05","weekday":"Sunday","principal":{"name":"Sixth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Anthony Mary Zaccaria, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Seventh Day within the Octave of Saints Peter and Paul","rank":"semidouble","priority":112,"color":"Red","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Sixth Sunday after Pentecost (lesser Sunday, semidouble); Saint Anthony Mary Zaccaria, Confessor (double); and Seventh Day within the Octave of Saints Peter and Paul (day within a common octave, semidouble).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Anthony Mary Zaccaria, Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Seventh Day within the Octave of Saints Peter and Paul is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","The commemorations are made in this order: Saint Anthony Mary Zaccaria, Confessor; and Seventh Day within the Octave of Saints Peter and Paul (Additiones VII.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-06","weekday":"Monday","principal":{"name":"Octave Day of Saints Peter and Paul","rank":"greater_double","priority":70,"color":"Red","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Octave Day of Saints Peter and Paul (octave day of a common octave, greater double).","Octave Day of Saints Peter and Paul is the office of the day.","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-07","weekday":"Tuesday","principal":{"name":"Saints Cyril and Methodius, Bishops and Confessors","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saints Cyril and Methodius, Bishops and Confessors (double).","Saints Cyril and Methodius, Bishops and Confessors is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-08","weekday":"Wednesday","principal":{"name":"Saint Elizabeth of Portugal, Widow","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Elizabeth of Portugal, Widow (semidouble).","Saint Elizabeth of Portugal, Widow is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-09","weekday":"Thursday","principal":{"name":"Thursday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Thursday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-10","weekday":"Friday","principal":{"name":"The Seven Holy Brothers, Martyrs, and Saints Rufina and Secunda, Virgins and Martyrs","rank":"semidouble","priority":100,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: The Seven Holy Brothers, Martyrs, and Saints Rufina and Secunda, Virgins and Martyrs (semidouble).","The Seven Holy Brothers, Martyrs, and Saints Rufina and Secunda, Virgins and Martyrs is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-11","weekday":"Saturday","principal":{"name":"Saint Mary on Saturday","rank":"simple","priority":145,"color":"White","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[{"name":"Saint Pius I, Pope and Martyr","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Mary on Saturday (simple); and Saint Pius I, Pope and Martyr (simple).","On a Saturday outside Advent and Lent the Office of Saint Mary is said in place of a simple feast (Rubricae generales VIII.1).","Saint Pius I, Pope and Martyr is commemorated at Lauds and Mass: a simple feast on a Saturday is commemorated in the Office of Saint Mary (Rubricae generales VIII.1).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-12","weekday":"Sunday","principal":{"name":"Seventh Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint John Gualbert, Abbot","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saints Nabor and Felix, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Seventh Sunday after Pentecost (lesser Sunday, semidouble); Saint John Gualbert, Abbot (double); and Saints Nabor and Felix, Martyrs (commemoration only).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint John Gualbert, Abbot is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Saints Nabor and Felix, Martyrs is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Saint John Gualbert, Abbot; and Saints Nabor and Felix, Martyrs (Additiones VII.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-13","weekday":"Monday","principal":{"name":"Saint Anacletus, Pope and Martyr","rank":"semidouble","priority":100,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Anacletus, Pope and Martyr (semidouble).","Saint Anacletus, Pope and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-14","weekday":"Tuesday","principal":{"name":"Saint Bonaventure, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Bonaventure, Bishop, Confessor and Doctor of the Church (double).","Saint Bonaventure, Bishop, Confessor and Doctor of the Church is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-15","weekday":"Wednesday","principal":{"name":"Saint Henry, Emperor and Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Henry, Emperor and Confessor (semidouble).","Saint Henry, Emperor and Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-16","weekday":"Thursday","principal":{"name":"Our Lady of Mount Carmel","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Our Lady of Mount Carmel (greater double).","Our Lady of Mount Carmel is the office of the day.","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-17","weekday":"Friday","principal":{"name":"Saint Alexius, Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Alexius, Confessor (semidouble).","Saint Alexius, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-18","weekday":"Saturday","principal":{"name":"Saint Camillus de Lellis, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Symphorosa and her Seven Sons, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Camillus de Lellis, Confessor (double); and Saint Symphorosa and her Seven Sons, Martyrs (commemoration only).","Saint Camillus de Lellis, Confessor is the office of the day.","Saint Symphorosa and her Seven Sons, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-19","weekday":"Sunday","principal":{"name":"Eighth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Vincent de Paul, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Eighth Sunday after Pentecost (lesser Sunday, semidouble); and Saint Vincent de Paul, Confessor (double).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Vincent de Paul, Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-20","weekday":"Monday","principal":{"name":"Saint Jerome Emiliani, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Margaret, Virgin and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Jerome Emiliani, Confessor (double); and Saint Margaret, Virgin and Martyr (commemoration only).","Saint Jerome Emiliani, Confessor is the office of the day.","Saint Margaret, Virgin and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-21","weekday":"Tuesday","principal":{"name":"Saint Praxedes, Virgin","rank":"simple","priority":150,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Praxedes, Virgin (simple).","Saint Praxedes, Virgin is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-22","weekday":"Wednesday","principal":{"name":"Saint Mary Magdalene, Penitent","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Mary Magdalene, Penitent (double).","Saint Mary Magdalene, Penitent is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-23","weekday":"Thursday","principal":{"name":"Saint Apollinaris, Bishop and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Liborius, Bishop and Confessor","rank":"simple","priority":155,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Apollinaris, Bishop and Martyr (double); and Saint Liborius, Bishop and Confessor (commemoration only).","Saint Apollinaris, Bishop and Martyr is the office of the day.","Saint Liborius, Bishop and Confessor is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-24","weekday":"Friday","principal":{"name":"Vigil of Saint James","rank":"simple","priority":130,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Vigil."},"options":[],"otherCandidates":[{"name":"Saint Christina, Virgin and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Vigil of Saint James (vigil, simple); and Saint Christina, Virgin and Martyr (commemoration only).","Vigil of Saint James is the office of the day.","Saint Christina, Virgin and Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Violet, for Ember days and fasting vigils (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-25","weekday":"Saturday","principal":{"name":"Saint James the Greater, Apostle","rank":"double_2","priority":50,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Christopher, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Time after Pentecost. Falling on this day: Saint James the Greater, Apostle (double of the II class); and Saint Christopher, Martyr (commemoration only).","Saint James the Greater, Apostle is the office of the day.","Saint Christopher, Martyr is commemorated at Lauds, and at Mass only in private Masses: printed with it in the Kalendarium; a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-26","weekday":"Sunday","principal":{"name":"Saint Anne, Mother of the Blessed Virgin Mary","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Ninth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Anne, Mother of the Blessed Virgin Mary (double of the II class); and Ninth Sunday after Pentecost (lesser Sunday, semidouble).","A lesser Sunday yields to a double of the I or II class and to any feast of the Lord of nine lessons (Additiones IV.2; Notanda 10).","Ninth Sunday after Pentecost is commemorated at Lauds, Vespers and Mass: a double of the II class admits a lesser Sunday (Additiones VII.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-27","weekday":"Monday","principal":{"name":"Saint Pantaleon, Martyr","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Pantaleon, Martyr (simple).","Saint Pantaleon, Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-28","weekday":"Tuesday","principal":{"name":"Saints Nazarius and Celsus, Martyrs, Victor I, Pope and Martyr, and Innocent I, Pope and Confessor","rank":"semidouble","priority":100,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saints Nazarius and Celsus, Martyrs, Victor I, Pope and Martyr, and Innocent I, Pope and Confessor (semidouble).","Saints Nazarius and Celsus, Martyrs, Victor I, Pope and Martyr, and Innocent I, Pope and Confessor is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-29","weekday":"Wednesday","principal":{"name":"Saint Martha, Virgin","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saints Felix II, Pope, Simplicius, Faustinus and Beatrice, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Martha, Virgin (semidouble); and Saints Felix II, Pope, Simplicius, Faustinus and Beatrice, Martyrs (commemoration only).","Saint Martha, Virgin is the office of the day.","Saints Felix II, Pope, Simplicius, Faustinus and Beatrice, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-30","weekday":"Thursday","principal":{"name":"Saints Abdon and Sennen, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saints Abdon and Sennen, Martyrs (simple).","Saints Abdon and Sennen, Martyrs is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-07-31","weekday":"Friday","principal":{"name":"Saint Ignatius of Loyola, Confessor","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Ignatius of Loyola, Confessor (greater double).","Saint Ignatius of Loyola, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-01","weekday":"Saturday","principal":{"name":"Saint Peter in Chains","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Paul, Apostle","rank":"simple","priority":155,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"The Holy Machabees, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Peter in Chains (greater double); Saint Paul, Apostle (commemoration only); and The Holy Machabees, Martyrs (commemoration only).","Saint Peter in Chains is the office of the day.","Saint Paul, Apostle is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The Holy Machabees, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Saint Paul, Apostle; and The Holy Machabees, Martyrs (Additiones VII.5).","Colour: White, as the Missal prescribes for this feast (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-02","weekday":"Sunday","principal":{"name":"Tenth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Alphonsus Liguori, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Stephen I, Pope and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Tenth Sunday after Pentecost (lesser Sunday, semidouble); Saint Alphonsus Liguori, Bishop, Confessor and Doctor of the Church (double); and Saint Stephen I, Pope and Martyr (commemoration only).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Alphonsus Liguori, Bishop, Confessor and Doctor of the Church is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Saint Stephen I, Pope and Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Saint Alphonsus Liguori, Bishop, Confessor and Doctor of the Church; and Saint Stephen I, Pope and Martyr (Additiones VII.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-03","weekday":"Monday","principal":{"name":"Finding of Saint Stephen, Protomartyr","rank":"semidouble","priority":100,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Finding of Saint Stephen, Protomartyr (semidouble).","Finding of Saint Stephen, Protomartyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-04","weekday":"Tuesday","principal":{"name":"Saint Dominic, Confessor","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Dominic, Confessor (greater double).","Saint Dominic, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-05","weekday":"Wednesday","principal":{"name":"Dedication of Saint Mary of the Snows","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Dedication of Saint Mary of the Snows (greater double).","Dedication of Saint Mary of the Snows is the office of the day.","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-06","weekday":"Thursday","principal":{"name":"Transfiguration of Our Lord Jesus Christ","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saints Sixtus II, Pope, Felicissimus and Agapitus, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Time after Pentecost. Falling on this day: Transfiguration of Our Lord Jesus Christ (double of the II class); and Saints Sixtus II, Pope, Felicissimus and Agapitus, Martyrs (commemoration only).","Transfiguration of Our Lord Jesus Christ is the office of the day.","Saints Sixtus II, Pope, Felicissimus and Agapitus, Martyrs is commemorated at Lauds, and at Mass only in private Masses: printed with it in the Kalendarium; a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-07","weekday":"Friday","principal":{"name":"Saint Cajetan, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Donatus, Bishop and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Cajetan, Confessor (double); and Saint Donatus, Bishop and Martyr (commemoration only).","Saint Cajetan, Confessor is the office of the day.","Saint Donatus, Bishop and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-08","weekday":"Saturday","principal":{"name":"Saints Cyriacus, Largus and Smaragdus, Martyrs","rank":"semidouble","priority":100,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Vigil of Saint Lawrence (anticipated)","rank":"simple","priority":130,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saints Cyriacus, Largus and Smaragdus, Martyrs (semidouble); and Vigil of Saint Lawrence (anticipated) (vigil, simple).","A common vigil yields to any office of nine lessons (Rubricae generales VI.1; Notanda 15).","Vigil of Saint Lawrence (anticipated) is commemorated at Lauds and Mass: a common vigil yielding to an office of nine lessons is commemorated (Notanda 15).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-09","weekday":"Sunday","principal":{"name":"Eleventh Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint John Mary Vianney, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Romanus, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Eleventh Sunday after Pentecost (lesser Sunday, semidouble); Saint John Mary Vianney, Confessor (double); and Saint Romanus, Martyr (commemoration only).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint John Mary Vianney, Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Saint Romanus, Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Saint John Mary Vianney, Confessor; and Saint Romanus, Martyr (Additiones VII.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-10","weekday":"Monday","principal":{"name":"Saint Lawrence, Martyr","rank":"double_2","priority":50,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Lawrence, Martyr (double of the II class).","Saint Lawrence, Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-11","weekday":"Tuesday","principal":{"name":"Saints Tiburtius and Susanna, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saints Tiburtius and Susanna, Martyrs (simple).","Saints Tiburtius and Susanna, Martyrs is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-12","weekday":"Wednesday","principal":{"name":"Saint Clare, Virgin","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Clare, Virgin (double).","Saint Clare, Virgin is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-13","weekday":"Thursday","principal":{"name":"Saints Hippolytus and Cassian, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saints Hippolytus and Cassian, Martyrs (simple).","Saints Hippolytus and Cassian, Martyrs is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-14","weekday":"Friday","principal":{"name":"Vigil of the Assumption","rank":"simple","priority":130,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Vigil."},"options":[],"otherCandidates":[{"name":"Saint Eusebius, Confessor","rank":"simple","priority":155,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Vigil of the Assumption (vigil, simple); and Saint Eusebius, Confessor (commemoration only).","Vigil of the Assumption is the office of the day.","Saint Eusebius, Confessor is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Violet, for Ember days and fasting vigils (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-15","weekday":"Saturday","principal":{"name":"Assumption of the Blessed Virgin Mary","rank":"double_1","priority":30,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Assumption of the Blessed Virgin Mary (double of the I class).","Assumption of the Blessed Virgin Mary is the office of the day.","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-16","weekday":"Sunday","principal":{"name":"Saint Joachim, Father of the Blessed Virgin Mary, Confessor","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Twelfth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Joachim, Father of the Blessed Virgin Mary, Confessor (double of the II class); Twelfth Sunday after Pentecost (lesser Sunday, semidouble); and Second Day within the Octave of the Assumption (day within a common octave, semidouble).","A lesser Sunday yields to a double of the I or II class and to any feast of the Lord of nine lessons (Additiones IV.2; Notanda 10).","Twelfth Sunday after Pentecost is commemorated at Lauds, Vespers and Mass: a double of the II class admits a lesser Sunday (Additiones VII.2).","Second Day within the Octave of the Assumption is not commemorated: a double of the II class admits no commemoration of a day within a common octave (Additiones VII.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-17","weekday":"Monday","principal":{"name":"Saint Hyacinth, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Third Day within the Octave of the Assumption","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."},{"name":"Octave Day of Saint Lawrence","rank":"simple","priority":140,"color":"Red","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Hyacinth, Confessor (double); Third Day within the Octave of the Assumption (day within a common octave, semidouble); and Octave Day of Saint Lawrence (octave day of a simple octave, simple).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Third Day within the Octave of the Assumption is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Octave Day of Saint Lawrence is commemorated at Lauds and Mass: a simple octave day is commemorated when impeded (Additiones VII.5).","The commemorations are made in this order: Third Day within the Octave of the Assumption; and Octave Day of Saint Lawrence (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-18","weekday":"Tuesday","principal":{"name":"Fourth Day within the Octave of the Assumption","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saint Agapitus, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Fourth Day within the Octave of the Assumption (day within a common octave, semidouble); and Saint Agapitus, Martyr (commemoration only).","Fourth Day within the Octave of the Assumption is the office of the day.","Saint Agapitus, Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-19","weekday":"Wednesday","principal":{"name":"Saint John Eudes, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Fifth Day within the Octave of the Assumption","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint John Eudes, Confessor (double); and Fifth Day within the Octave of the Assumption (day within a common octave, semidouble).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Fifth Day within the Octave of the Assumption is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-20","weekday":"Thursday","principal":{"name":"Saint Bernard, Abbot, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Sixth Day within the Octave of the Assumption","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Bernard, Abbot, Confessor and Doctor of the Church (double); and Sixth Day within the Octave of the Assumption (day within a common octave, semidouble).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Sixth Day within the Octave of the Assumption is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-21","weekday":"Friday","principal":{"name":"Saint Jane Frances de Chantal, Widow","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Seventh Day within the Octave of the Assumption","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Jane Frances de Chantal, Widow (double); and Seventh Day within the Octave of the Assumption (day within a common octave, semidouble).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Seventh Day within the Octave of the Assumption is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-22","weekday":"Saturday","principal":{"name":"Immaculate Heart of the Blessed Virgin Mary","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Vigil of Saint Bartholomew (anticipated)","rank":"simple","priority":130,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds and Mass)."},{"name":"Saints Timothy, Hippolytus and Symphorian, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Time after Pentecost. Falling on this day: Immaculate Heart of the Blessed Virgin Mary (double of the II class); Octave Day of the Assumption (octave day of a common octave, greater double); Vigil of Saint Bartholomew (anticipated) (vigil, simple); and Saints Timothy, Hippolytus and Symphorian, Martyrs (commemoration only).","The octave day of a common octave, or of one of the 3rd order, yields only to a double of the I or II class (Additiones III.3; Tabella).","Octave Day of the Assumption is omitted: when two offices of the same Person meet, the nobler is said and the other omitted (Additiones IV.7; Notanda 8).","Vigil of Saint Bartholomew (anticipated) is commemorated at Lauds and Mass: a double of the II class admits a common vigil (Additiones VII.2).","Saints Timothy, Hippolytus and Symphorian, Martyrs is commemorated at Lauds, and at Mass only in private Masses: printed with it in the Kalendarium; a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","The commemorations are made in this order: Vigil of Saint Bartholomew (anticipated); and Saints Timothy, Hippolytus and Symphorian, Martyrs (Additiones VII.5).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-23","weekday":"Sunday","principal":{"name":"Thirteenth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Philip Benizi, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Thirteenth Sunday after Pentecost (lesser Sunday, semidouble); and Saint Philip Benizi, Confessor (double).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Philip Benizi, Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-24","weekday":"Monday","principal":{"name":"Saint Bartholomew, Apostle","rank":"double_2","priority":50,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Bartholomew, Apostle (double of the II class).","Saint Bartholomew, Apostle is the office of the day.","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-25","weekday":"Tuesday","principal":{"name":"Saint Louis, King and Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Louis, King and Confessor (semidouble).","Saint Louis, King and Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-26","weekday":"Wednesday","principal":{"name":"Saint Zephyrinus, Pope and Martyr","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Zephyrinus, Pope and Martyr (simple).","Saint Zephyrinus, Pope and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-27","weekday":"Thursday","principal":{"name":"Saint Joseph Calasanz, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Joseph Calasanz, Confessor (double).","Saint Joseph Calasanz, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-28","weekday":"Friday","principal":{"name":"Saint Augustine, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Hermes, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Augustine, Bishop, Confessor and Doctor of the Church (double); and Saint Hermes, Martyr (commemoration only).","Saint Augustine, Bishop, Confessor and Doctor of the Church is the office of the day.","Saint Hermes, Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-29","weekday":"Saturday","principal":{"name":"Beheading of Saint John the Baptist","rank":"greater_double","priority":80,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Sabina, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Beheading of Saint John the Baptist (greater double); and Saint Sabina, Martyr (commemoration only).","Beheading of Saint John the Baptist is the office of the day.","Saint Sabina, Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-30","weekday":"Sunday","principal":{"name":"Fourteenth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Rose of Lima, Virgin","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Saints Felix and Adauctus, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Fourteenth Sunday after Pentecost (lesser Sunday, semidouble); Saint Rose of Lima, Virgin (double); and Saints Felix and Adauctus, Martyrs (commemoration only).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Rose of Lima, Virgin is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Saints Felix and Adauctus, Martyrs is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Saint Rose of Lima, Virgin; and Saints Felix and Adauctus, Martyrs (Additiones VII.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-08-31","weekday":"Monday","principal":{"name":"Saint Raymond Nonnatus, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Raymond Nonnatus, Confessor (double).","Saint Raymond Nonnatus, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-01","weekday":"Tuesday","principal":{"name":"Saint Giles, Abbot","rank":"simple","priority":150,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"The Twelve Holy Brothers, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Giles, Abbot (simple); and The Twelve Holy Brothers, Martyrs (commemoration only).","Saint Giles, Abbot is the office of the day.","The Twelve Holy Brothers, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-02","weekday":"Wednesday","principal":{"name":"Saint Stephen, King of Hungary, Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Stephen, King of Hungary, Confessor (semidouble).","Saint Stephen, King of Hungary, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-03","weekday":"Thursday","principal":{"name":"Saint Pius X, Pope and Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Pius X, Pope and Confessor (double).","Saint Pius X, Pope and Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-04","weekday":"Friday","principal":{"name":"Friday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Friday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-05","weekday":"Saturday","principal":{"name":"Saint Lawrence Justinian, Bishop and Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Lawrence Justinian, Bishop and Confessor (semidouble).","Saint Lawrence Justinian, Bishop and Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-06","weekday":"Sunday","principal":{"name":"Fifteenth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Fifteenth Sunday after Pentecost (lesser Sunday, semidouble).","Fifteenth Sunday after Pentecost is the office of the day.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-07","weekday":"Monday","principal":{"name":"Monday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Monday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-08","weekday":"Tuesday","principal":{"name":"Nativity of the Blessed Virgin Mary","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Adrian, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Time after Pentecost. Falling on this day: Nativity of the Blessed Virgin Mary (double of the II class); and Saint Adrian, Martyr (commemoration only).","Nativity of the Blessed Virgin Mary is the office of the day.","Saint Adrian, Martyr is commemorated at Lauds, and at Mass only in private Masses: printed with it in the Kalendarium; a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-09","weekday":"Wednesday","principal":{"name":"Saint Gorgonius, Martyr","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Gorgonius, Martyr (simple).","Saint Gorgonius, Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-10","weekday":"Thursday","principal":{"name":"Saint Nicholas of Tolentino, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Nicholas of Tolentino, Confessor (double).","Saint Nicholas of Tolentino, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-11","weekday":"Friday","principal":{"name":"Saints Protus and Hyacinth, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saints Protus and Hyacinth, Martyrs (simple).","Saints Protus and Hyacinth, Martyrs is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-12","weekday":"Saturday","principal":{"name":"Most Holy Name of Mary","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Most Holy Name of Mary (greater double).","Most Holy Name of Mary is the office of the day.","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-13","weekday":"Sunday","principal":{"name":"Sixteenth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Sixteenth Sunday after Pentecost (lesser Sunday, semidouble).","Sixteenth Sunday after Pentecost is the office of the day.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-14","weekday":"Monday","principal":{"name":"Exaltation of the Holy Cross","rank":"greater_double","priority":80,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Exaltation of the Holy Cross (greater double).","Exaltation of the Holy Cross is the office of the day.","Colour: Red, for a feast of the Cross or of the Precious Blood (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-15","weekday":"Tuesday","principal":{"name":"Seven Sorrows of the Blessed Virgin Mary","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Nicomedes, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Time after Pentecost. Falling on this day: Seven Sorrows of the Blessed Virgin Mary (double of the II class); Octave Day of the Nativity of the Blessed Virgin Mary (octave day of a simple octave, simple); and Saint Nicomedes, Martyr (commemoration only).","A simple octave day yields to every office above a simple (Additiones III.4; Tabella).","Octave Day of the Nativity of the Blessed Virgin Mary is omitted: when two offices of the same Person meet, the nobler is said and the other omitted (Additiones IV.7; Notanda 8).","Saint Nicomedes, Martyr is commemorated at Lauds, and at Mass only in private Masses: printed with it in the Kalendarium; a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-16","weekday":"Wednesday","principal":{"name":"Saints Cornelius, Pope, and Cyprian, Bishop, Martyrs","rank":"semidouble","priority":100,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Ember Wednesday of September","rank":"simple","priority":120,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds and Mass)."},{"name":"Saints Euphemia, Lucy and Geminianus, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saints Cornelius, Pope, and Cyprian, Bishop, Martyrs (semidouble); Ember Wednesday of September (greater feria); and Saints Euphemia, Lucy and Geminianus, Martyrs (commemoration only).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Ember Wednesday of September is commemorated at Lauds and Mass: a greater feria yielding to an office of nine lessons is commemorated (Notanda 15).","Saints Euphemia, Lucy and Geminianus, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Ember Wednesday of September; and Saints Euphemia, Lucy and Geminianus, Martyrs (Additiones VII.5).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-17","weekday":"Thursday","principal":{"name":"Impression of the Holy Stigmata of Saint Francis, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Impression of the Holy Stigmata of Saint Francis, Confessor (double).","Impression of the Holy Stigmata of Saint Francis, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-18","weekday":"Friday","principal":{"name":"Saint Joseph of Cupertino, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Ember Friday of September","rank":"simple","priority":120,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Joseph of Cupertino, Confessor (double); and Ember Friday of September (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Ember Friday of September is commemorated at Lauds and Mass: a greater feria yielding to an office of nine lessons is commemorated (Notanda 15).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-19","weekday":"Saturday","principal":{"name":"Saint Januarius, Bishop, and Companions, Martyrs","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Ember Saturday of September","rank":"simple","priority":120,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds and Mass)."},{"name":"Vigil of Saint Matthew (anticipated)","rank":"simple","priority":130,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Januarius, Bishop, and Companions, Martyrs (double); Ember Saturday of September (greater feria); and Vigil of Saint Matthew (anticipated) (vigil, simple).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Ember Saturday of September is commemorated at Lauds and Mass: a greater feria yielding to an office of nine lessons is commemorated (Notanda 15).","Vigil of Saint Matthew (anticipated) is commemorated at Lauds and Mass: a common vigil yielding to an office of nine lessons is commemorated (Notanda 15).","The commemorations are made in this order: Ember Saturday of September; and Vigil of Saint Matthew (anticipated) (Additiones VII.5).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-20","weekday":"Sunday","principal":{"name":"Seventeenth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Eustace and Companions, Martyrs","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Seventeenth Sunday after Pentecost (lesser Sunday, semidouble); and Saint Eustace and Companions, Martyrs (double).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Eustace and Companions, Martyrs is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-21","weekday":"Monday","principal":{"name":"Saint Matthew, Apostle and Evangelist","rank":"double_2","priority":50,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Matthew, Apostle and Evangelist (double of the II class).","Saint Matthew, Apostle and Evangelist is the office of the day.","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-22","weekday":"Tuesday","principal":{"name":"Saint Thomas of Villanova, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Maurice and Companions, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Thomas of Villanova, Bishop and Confessor (double); and Saint Maurice and Companions, Martyrs (commemoration only).","Saint Thomas of Villanova, Bishop and Confessor is the office of the day.","Saint Maurice and Companions, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-23","weekday":"Wednesday","principal":{"name":"Saint Linus, Pope and Martyr","rank":"semidouble","priority":100,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Thecla, Virgin and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Linus, Pope and Martyr (semidouble); and Saint Thecla, Virgin and Martyr (commemoration only).","Saint Linus, Pope and Martyr is the office of the day.","Saint Thecla, Virgin and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-24","weekday":"Thursday","principal":{"name":"Our Lady of Ransom","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Our Lady of Ransom (greater double).","Our Lady of Ransom is the office of the day.","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-25","weekday":"Friday","principal":{"name":"Friday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Friday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-26","weekday":"Saturday","principal":{"name":"Saint Mary on Saturday","rank":"simple","priority":145,"color":"White","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[{"name":"Saints Cyprian and Justina, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Mary on Saturday (simple); and Saints Cyprian and Justina, Martyrs (simple).","On a Saturday outside Advent and Lent the Office of Saint Mary is said in place of a simple feast (Rubricae generales VIII.1).","Saints Cyprian and Justina, Martyrs is commemorated at Lauds and Mass: a simple feast on a Saturday is commemorated in the Office of Saint Mary (Rubricae generales VIII.1).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-27","weekday":"Sunday","principal":{"name":"Eighteenth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saints Cosmas and Damian, Martyrs","rank":"semidouble","priority":100,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Eighteenth Sunday after Pentecost (lesser Sunday, semidouble); and Saints Cosmas and Damian, Martyrs (semidouble).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saints Cosmas and Damian, Martyrs is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-28","weekday":"Monday","principal":{"name":"Saint Wenceslaus, Duke and Martyr","rank":"semidouble","priority":100,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Wenceslaus, Duke and Martyr (semidouble).","Saint Wenceslaus, Duke and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-29","weekday":"Tuesday","principal":{"name":"Dedication of Saint Michael the Archangel","rank":"double_1","priority":30,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Dedication of Saint Michael the Archangel (double of the I class).","Dedication of Saint Michael the Archangel is the office of the day.","Colour: White, for a feast of the Angels (Rubricae generales Missalis XVIII)."]},{"date":"2026-09-30","weekday":"Wednesday","principal":{"name":"Saint Jerome, Priest, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Jerome, Priest, Confessor and Doctor of the Church (double).","Saint Jerome, Priest, Confessor and Doctor of the Church is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-01","weekday":"Thursday","principal":{"name":"Saint Remigius, Bishop and Confessor","rank":"simple","priority":150,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Remigius, Bishop and Confessor (simple).","Saint Remigius, Bishop and Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-02","weekday":"Friday","principal":{"name":"Holy Guardian Angels","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Holy Guardian Angels (greater double).","Holy Guardian Angels is the office of the day.","Colour: White, for a feast of the Angels (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-03","weekday":"Saturday","principal":{"name":"Saint Thérèse of the Child Jesus, Virgin","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Thérèse of the Child Jesus, Virgin (double).","Saint Thérèse of the Child Jesus, Virgin is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-04","weekday":"Sunday","principal":{"name":"Nineteenth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Francis of Assisi, Confessor","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Nineteenth Sunday after Pentecost (lesser Sunday, semidouble); and Saint Francis of Assisi, Confessor (greater double).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Francis of Assisi, Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-05","weekday":"Monday","principal":{"name":"Saint Placid and Companions, Martyrs","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Placid and Companions, Martyrs (simple).","Saint Placid and Companions, Martyrs is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-06","weekday":"Tuesday","principal":{"name":"Saint Bruno, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Bruno, Confessor (double).","Saint Bruno, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-07","weekday":"Wednesday","principal":{"name":"Most Holy Rosary of the Blessed Virgin Mary","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Mark, Pope and Confessor","rank":"simple","priority":155,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."},{"name":"Saints Sergius, Bacchus, Marcellus and Apuleius, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Time after Pentecost. Falling on this day: Most Holy Rosary of the Blessed Virgin Mary (double of the II class); Saint Mark, Pope and Confessor (commemoration only); and Saints Sergius, Bacchus, Marcellus and Apuleius, Martyrs (commemoration only).","Most Holy Rosary of the Blessed Virgin Mary is the office of the day.","Saint Mark, Pope and Confessor is commemorated at Lauds, and at Mass only in private Masses: printed with it in the Kalendarium; a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","Saints Sergius, Bacchus, Marcellus and Apuleius, Martyrs is commemorated at Lauds, and at Mass only in private Masses: printed with it in the Kalendarium; a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","The commemorations are made in this order: Saint Mark, Pope and Confessor; and Saints Sergius, Bacchus, Marcellus and Apuleius, Martyrs (Additiones VII.5).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-08","weekday":"Thursday","principal":{"name":"Saint Bridget of Sweden, Widow","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Bridget of Sweden, Widow (double).","Saint Bridget of Sweden, Widow is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-09","weekday":"Friday","principal":{"name":"Saint John Leonardi, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saints Denis, Bishop, Rusticus and Eleutherius, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint John Leonardi, Confessor (double); and Saints Denis, Bishop, Rusticus and Eleutherius, Martyrs (commemoration only).","Saint John Leonardi, Confessor is the office of the day.","Saints Denis, Bishop, Rusticus and Eleutherius, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-10","weekday":"Saturday","principal":{"name":"Saint Francis Borgia, Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Francis Borgia, Confessor (semidouble).","Saint Francis Borgia, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-11","weekday":"Sunday","principal":{"name":"Maternity of the Blessed Virgin Mary","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Twentieth Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Maternity of the Blessed Virgin Mary (double of the II class); and Twentieth Sunday after Pentecost (lesser Sunday, semidouble).","A lesser Sunday yields to a double of the I or II class and to any feast of the Lord of nine lessons (Additiones IV.2; Notanda 10).","Twentieth Sunday after Pentecost is commemorated at Lauds, Vespers and Mass: a double of the II class admits a lesser Sunday (Additiones VII.2).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-12","weekday":"Monday","principal":{"name":"Monday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Monday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-13","weekday":"Tuesday","principal":{"name":"Saint Edward, King and Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Edward, King and Confessor (semidouble).","Saint Edward, King and Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-14","weekday":"Wednesday","principal":{"name":"Saint Callistus I, Pope and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Callistus I, Pope and Martyr (double).","Saint Callistus I, Pope and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-15","weekday":"Thursday","principal":{"name":"Saint Teresa of Avila, Virgin","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Teresa of Avila, Virgin (double).","Saint Teresa of Avila, Virgin is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-16","weekday":"Friday","principal":{"name":"Saint Hedwig, Widow","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Hedwig, Widow (semidouble).","Saint Hedwig, Widow is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-17","weekday":"Saturday","principal":{"name":"Saint Margaret Mary Alacoque, Virgin","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Margaret Mary Alacoque, Virgin (double).","Saint Margaret Mary Alacoque, Virgin is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-18","weekday":"Sunday","principal":{"name":"Saint Luke, Evangelist","rank":"double_2","priority":50,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Twenty-First Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Luke, Evangelist (double of the II class); and Twenty-First Sunday after Pentecost (lesser Sunday, semidouble).","A lesser Sunday yields to a double of the I or II class and to any feast of the Lord of nine lessons (Additiones IV.2; Notanda 10).","Twenty-First Sunday after Pentecost is commemorated at Lauds, Vespers and Mass: a double of the II class admits a lesser Sunday (Additiones VII.2).","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-19","weekday":"Monday","principal":{"name":"Saint Peter of Alcantara, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Peter of Alcantara, Confessor (double).","Saint Peter of Alcantara, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-20","weekday":"Tuesday","principal":{"name":"Saint John Cantius, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint John Cantius, Confessor (double).","Saint John Cantius, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-21","weekday":"Wednesday","principal":{"name":"Saint Hilarion, Abbot","rank":"simple","priority":150,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Ursula and Companions, Virgins and Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Hilarion, Abbot (simple); and Saint Ursula and Companions, Virgins and Martyrs (commemoration only).","Saint Hilarion, Abbot is the office of the day.","Saint Ursula and Companions, Virgins and Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-22","weekday":"Thursday","principal":{"name":"Thursday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Thursday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-23","weekday":"Friday","principal":{"name":"Friday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Friday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-24","weekday":"Saturday","principal":{"name":"Saint Raphael the Archangel","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Raphael the Archangel (greater double).","Saint Raphael the Archangel is the office of the day.","Colour: White, for a feast of the Angels (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-25","weekday":"Sunday","principal":{"name":"Our Lord Jesus Christ the King","rank":"double_1","priority":30,"color":"White","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[{"name":"Twenty-Second Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Our Lord Jesus Christ the King (double of the I class); Twenty-Second Sunday after Pentecost (lesser Sunday, semidouble); and Saints Chrysanthus and Daria, Martyrs (simple).","Christ the King is kept on the last Sunday of October (Additiones V.3).","Twenty-Second Sunday after Pentecost is commemorated at Lauds, Vespers and Mass: a double of the I class admits the commemoration of any Sunday (Additiones VII.1).","Saints Chrysanthus and Daria, Martyrs is not commemorated: a double of the I class admits no commemoration of a simple (Additiones VII.1).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-26","weekday":"Monday","principal":{"name":"Saint Evaristus, Pope and Martyr","rank":"simple","priority":150,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Evaristus, Pope and Martyr (simple).","Saint Evaristus, Pope and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-27","weekday":"Tuesday","principal":{"name":"Vigil of Saints Simon and Jude","rank":"simple","priority":130,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Vigil."},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Vigil of Saints Simon and Jude (vigil, simple).","Vigil of Saints Simon and Jude is the office of the day.","Colour: Violet, for Ember days and fasting vigils (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-28","weekday":"Wednesday","principal":{"name":"Saints Simon and Jude, Apostles","rank":"double_2","priority":50,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saints Simon and Jude, Apostles (double of the II class).","Saints Simon and Jude, Apostles is the office of the day.","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-29","weekday":"Thursday","principal":{"name":"Thursday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Thursday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-30","weekday":"Friday","principal":{"name":"Friday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Friday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-10-31","weekday":"Saturday","principal":{"name":"Vigil of All Saints","rank":"simple","priority":130,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Vigil."},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Vigil of All Saints (vigil, simple).","Vigil of All Saints is the office of the day.","Colour: Violet, for Ember days and fasting vigils (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-01","weekday":"Sunday","principal":{"name":"All Saints","rank":"double_1","priority":30,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Twenty-Third Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: All Saints (double of the I class); and Twenty-Third Sunday after Pentecost (lesser Sunday, semidouble).","A lesser Sunday yields to a double of the I or II class and to any feast of the Lord of nine lessons (Additiones IV.2; Notanda 10).","Twenty-Third Sunday after Pentecost is commemorated at Lauds, Vespers and Mass: a double of the I class admits the commemoration of any Sunday (Additiones VII.1).","Colour: White, for All Saints (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-02","weekday":"Monday","principal":{"name":"Commemoration of All the Faithful Departed (All Souls)","rank":"double","priority":25,"color":"Black","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. Falling on this day: Commemoration of All the Faithful Departed (All Souls) (double); and Second Day within the Octave of All Saints (day within a common octave, semidouble).","All Souls excludes every occurring feast (Additiones IV.6).","Second Day within the Octave of All Saints is not commemorated: All Souls admits no commemoration of anything (Additiones VII.3).","Colour: Black, for the office of the dead (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-03","weekday":"Tuesday","principal":{"name":"Third Day within the Octave of All Saints","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Third Day within the Octave of All Saints (day within a common octave, semidouble).","Third Day within the Octave of All Saints is the office of the day.","Colour: White, the colour of the feast whose octave it is (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-04","weekday":"Wednesday","principal":{"name":"Saint Charles Borromeo, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Fourth Day within the Octave of All Saints","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."},{"name":"Saints Vitalis and Agricola, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Charles Borromeo, Bishop and Confessor (double); Fourth Day within the Octave of All Saints (day within a common octave, semidouble); and Saints Vitalis and Agricola, Martyrs (commemoration only).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Fourth Day within the Octave of All Saints is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Saints Vitalis and Agricola, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Fourth Day within the Octave of All Saints; and Saints Vitalis and Agricola, Martyrs (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-05","weekday":"Thursday","principal":{"name":"Fifth Day within the Octave of All Saints","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Fifth Day within the Octave of All Saints (day within a common octave, semidouble).","Fifth Day within the Octave of All Saints is the office of the day.","Colour: White, the colour of the feast whose octave it is (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-06","weekday":"Friday","principal":{"name":"Sixth Day within the Octave of All Saints","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Sixth Day within the Octave of All Saints (day within a common octave, semidouble).","Sixth Day within the Octave of All Saints is the office of the day.","Colour: White, the colour of the feast whose octave it is (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-07","weekday":"Saturday","principal":{"name":"Seventh Day within the Octave of All Saints","rank":"semidouble","priority":112,"color":"White","season":"Time after Pentecost","source":"octave","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Seventh Day within the Octave of All Saints (day within a common octave, semidouble).","Seventh Day within the Octave of All Saints is the office of the day.","Colour: White, the colour of the feast whose octave it is (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-08","weekday":"Sunday","principal":{"name":"Twenty-Fourth Sunday after Pentecost (Fifth Sunday after Epiphany resumed)","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Octave Day of All Saints","rank":"greater_double","priority":70,"color":"White","season":"Time after Pentecost","source":"octave","notes":"Commemorated (Lauds and Mass)."},{"name":"The Four Holy Crowned Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Twenty-Fourth Sunday after Pentecost (Fifth Sunday after Epiphany resumed) (lesser Sunday, semidouble); Octave Day of All Saints (octave day of a common octave, greater double); and The Four Holy Crowned Martyrs (commemoration only).","This year has 26 Sundays after Pentecost, so the Sundays after Epiphany left over in January are said between the 23rd and the last (Rubricae generales IV.3–4).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Octave Day of All Saints is commemorated at Lauds and Mass: an impeded octave day is not transferred but commemorated (Additiones IV.8).","The Four Holy Crowned Martyrs is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Octave Day of All Saints; and The Four Holy Crowned Martyrs (Additiones VII.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-09","weekday":"Monday","principal":{"name":"Dedication of the Archbasilica of the Most Holy Saviour","rank":"double_2","priority":50,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Theodore, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds only (and private Masses))."}],"reasoning":["Time after Pentecost. Falling on this day: Dedication of the Archbasilica of the Most Holy Saviour (double of the II class); and Saint Theodore, Martyr (commemoration only).","Dedication of the Archbasilica of the Most Holy Saviour is the office of the day.","Saint Theodore, Martyr is commemorated at Lauds, and at Mass only in private Masses: printed with it in the Kalendarium; a double of the II class admits a simple at Lauds only (Notanda 6), and at Mass only in private Masses (Additiones Missalis V.1).","Colour: White, for the dedication of a church (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-10","weekday":"Tuesday","principal":{"name":"Saint Andrew Avellino, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saints Tryphon, Respicius and Nympha, Martyrs","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Andrew Avellino, Confessor (double); and Saints Tryphon, Respicius and Nympha, Martyrs (commemoration only).","Saint Andrew Avellino, Confessor is the office of the day.","Saints Tryphon, Respicius and Nympha, Martyrs is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-11","weekday":"Wednesday","principal":{"name":"Saint Martin of Tours, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Menas, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Martin of Tours, Bishop and Confessor (double); and Saint Menas, Martyr (commemoration only).","Saint Martin of Tours, Bishop and Confessor is the office of the day.","Saint Menas, Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-12","weekday":"Thursday","principal":{"name":"Saint Martin I, Pope and Martyr","rank":"semidouble","priority":100,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Martin I, Pope and Martyr (semidouble).","Saint Martin I, Pope and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-13","weekday":"Friday","principal":{"name":"Saint Didacus, Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Didacus, Confessor (semidouble).","Saint Didacus, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-14","weekday":"Saturday","principal":{"name":"Saint Josaphat, Bishop and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Josaphat, Bishop and Martyr (double).","Saint Josaphat, Bishop and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-15","weekday":"Sunday","principal":{"name":"Twenty-Fifth Sunday after Pentecost (Sixth Sunday after Epiphany resumed)","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Albert the Great, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Twenty-Fifth Sunday after Pentecost (Sixth Sunday after Epiphany resumed) (lesser Sunday, semidouble); and Saint Albert the Great, Bishop, Confessor and Doctor of the Church (double).","This year has 26 Sundays after Pentecost, so the Sundays after Epiphany left over in January are said between the 23rd and the last (Rubricae generales IV.3–4).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Albert the Great, Bishop, Confessor and Doctor of the Church is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-16","weekday":"Monday","principal":{"name":"Saint Gertrude, Virgin","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Gertrude, Virgin (double).","Saint Gertrude, Virgin is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-17","weekday":"Tuesday","principal":{"name":"Saint Gregory the Wonderworker, Bishop and Confessor","rank":"semidouble","priority":100,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Gregory the Wonderworker, Bishop and Confessor (semidouble).","Saint Gregory the Wonderworker, Bishop and Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-18","weekday":"Wednesday","principal":{"name":"Dedication of the Basilicas of Saints Peter and Paul","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Dedication of the Basilicas of Saints Peter and Paul (greater double).","Dedication of the Basilicas of Saints Peter and Paul is the office of the day.","Colour: White, for the dedication of a church (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-19","weekday":"Thursday","principal":{"name":"Saint Elizabeth of Hungary, Widow","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Pontian, Pope and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Elizabeth of Hungary, Widow (double); and Saint Pontian, Pope and Martyr (commemoration only).","Saint Elizabeth of Hungary, Widow is the office of the day.","Saint Pontian, Pope and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-20","weekday":"Friday","principal":{"name":"Saint Felix of Valois, Confessor","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Felix of Valois, Confessor (double).","Saint Felix of Valois, Confessor is the office of the day.","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-21","weekday":"Saturday","principal":{"name":"Presentation of the Blessed Virgin Mary","rank":"greater_double","priority":80,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Presentation of the Blessed Virgin Mary (greater double).","Presentation of the Blessed Virgin Mary is the office of the day.","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-22","weekday":"Sunday","principal":{"name":"Twenty-Sixth and Last Sunday after Pentecost","rank":"semidouble","priority":60,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":"Minor Sunday."},"options":[],"otherCandidates":[{"name":"Saint Cecilia, Virgin and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Twenty-Sixth and Last Sunday after Pentecost (lesser Sunday, semidouble); and Saint Cecilia, Virgin and Martyr (double).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Saint Cecilia, Virgin and Martyr is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-23","weekday":"Monday","principal":{"name":"Saint Clement I, Pope and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Felicity, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Clement I, Pope and Martyr (double); and Saint Felicity, Martyr (commemoration only).","Saint Clement I, Pope and Martyr is the office of the day.","Saint Felicity, Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-24","weekday":"Tuesday","principal":{"name":"Saint John of the Cross, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Chrysogonus, Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint John of the Cross, Confessor and Doctor of the Church (double); and Saint Chrysogonus, Martyr (commemoration only).","Saint John of the Cross, Confessor and Doctor of the Church is the office of the day.","Saint Chrysogonus, Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-25","weekday":"Wednesday","principal":{"name":"Saint Catherine of Alexandria, Virgin and Martyr","rank":"double","priority":90,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Saint Catherine of Alexandria, Virgin and Martyr (double).","Saint Catherine of Alexandria, Virgin and Martyr is the office of the day.","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-26","weekday":"Thursday","principal":{"name":"Saint Sylvester Gozzolini, Abbot","rank":"double","priority":90,"color":"White","season":"Time after Pentecost","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Saint Peter of Alexandria, Bishop and Martyr","rank":"simple","priority":155,"color":"Red","season":"Time after Pentecost","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Time after Pentecost. Falling on this day: Saint Sylvester Gozzolini, Abbot (double); and Saint Peter of Alexandria, Bishop and Martyr (commemoration only).","Saint Sylvester Gozzolini, Abbot is the office of the day.","Saint Peter of Alexandria, Bishop and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-27","weekday":"Friday","principal":{"name":"Friday (feria)","rank":"simple","priority":170,"color":"Green","season":"Time after Pentecost","source":"temporal","notes":""},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Friday (feria) (feria).","No feast falls on this day, so the office is of the feria.","Colour: Green, for the office of the season after the octave of Pentecost (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-28","weekday":"Saturday","principal":{"name":"Vigil of Saint Andrew (anticipated)","rank":"simple","priority":130,"color":"Violet","season":"Time after Pentecost","source":"temporal","notes":"Vigil, anticipated on Saturday."},"options":[],"otherCandidates":[],"reasoning":["Time after Pentecost. One office falls on this day: Vigil of Saint Andrew (anticipated) (vigil, simple).","Vigil of Saint Andrew (anticipated) is the office of the day.","Colour: Violet, for Ember days and fasting vigils (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-29","weekday":"Sunday","principal":{"name":"First Sunday of Advent","rank":"semidouble","priority":20,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater Sunday of the I class."},"options":[],"otherCandidates":[{"name":"Saint Saturninus, Martyr","rank":"simple","priority":155,"color":"Red","season":"Advent","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: First Sunday of Advent (greater Sunday of the I class, semidouble); and Saint Saturninus, Martyr (commemoration only).","First Sunday of Advent is the office of the day.","Saint Saturninus, Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Violet, the colour of Advent (Rubricae generales Missalis XVIII)."]},{"date":"2026-11-30","weekday":"Monday","principal":{"name":"Saint Andrew, Apostle","rank":"double_2","priority":50,"color":"Red","season":"Advent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Monday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Saint Andrew, Apostle (double of the II class); and Monday of Advent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Monday of Advent is commemorated at Lauds and Mass: a double of the II class admits a greater feria (Additiones VII.2).","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-01","weekday":"Tuesday","principal":{"name":"Tuesday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Advent. One office falls on this day: Tuesday of Advent (greater feria).","Tuesday of Advent is the office of the day.","Colour: Violet, the colour of Advent (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-02","weekday":"Wednesday","principal":{"name":"Saint Bibiana, Virgin and Martyr","rank":"semidouble","priority":100,"color":"Red","season":"Advent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Wednesday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Saint Bibiana, Virgin and Martyr (semidouble); and Wednesday of Advent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Wednesday of Advent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-03","weekday":"Thursday","principal":{"name":"Saint Francis Xavier, Confessor","rank":"greater_double","priority":80,"color":"White","season":"Advent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Thursday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Saint Francis Xavier, Confessor (greater double); and Thursday of Advent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Thursday of Advent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-04","weekday":"Friday","principal":{"name":"Saint Peter Chrysologus, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Advent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Friday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Barbara, Virgin and Martyr","rank":"simple","priority":155,"color":"Red","season":"Advent","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Saint Peter Chrysologus, Bishop, Confessor and Doctor of the Church (double); Friday of Advent (greater feria); and Saint Barbara, Virgin and Martyr (commemoration only).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Friday of Advent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Saint Barbara, Virgin and Martyr is commemorated at Lauds and Mass: printed with it in the Kalendarium; a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Friday of Advent; and Saint Barbara, Virgin and Martyr (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-05","weekday":"Saturday","principal":{"name":"Saturday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[{"name":"Saint Sabbas, Abbot","rank":"simple","priority":155,"color":"White","season":"Advent","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Saturday of Advent (greater feria); and Saint Sabbas, Abbot (commemoration only).","Saturday of Advent is the office of the day.","Saint Sabbas, Abbot is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","Colour: Violet, the colour of Advent (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-06","weekday":"Sunday","principal":{"name":"Second Sunday of Advent","rank":"semidouble","priority":40,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater Sunday of the II class."},"options":[],"otherCandidates":[{"name":"Saint Nicholas, Bishop and Confessor","rank":"double","priority":90,"color":"White","season":"Advent","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Second Sunday of Advent (greater Sunday of the II class, semidouble); and Saint Nicholas, Bishop and Confessor (double).","A greater Sunday of the II class yields only to a double of the I class (Additiones IV.1; Tabella).","Saint Nicholas, Bishop and Confessor is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Colour: Violet, the colour of Advent (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-07","weekday":"Monday","principal":{"name":"Saint Ambrose, Bishop, Confessor and Doctor of the Church","rank":"double","priority":90,"color":"White","season":"Advent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Monday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."},{"name":"Vigil of the Immaculate Conception","rank":"simple","priority":130,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Mass only)."}],"reasoning":["Advent. Falling on this day: Saint Ambrose, Bishop, Confessor and Doctor of the Church (double); Monday of Advent (greater feria); and Vigil of the Immaculate Conception (vigil, simple).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Monday of Advent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Vigil of the Immaculate Conception is commemorated at Mass only: a vigil falling in Advent, Lent or the Ember days is not commemorated in the Office (Rubricae generales VI.2), but it is at Mass (Additiones Missalis V.1).","The commemorations are made in this order: Monday of Advent; and Vigil of the Immaculate Conception (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-08","weekday":"Tuesday","principal":{"name":"Immaculate Conception of the Blessed Virgin Mary","rank":"double_1","priority":30,"color":"White","season":"Advent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Tuesday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Immaculate Conception of the Blessed Virgin Mary (double of the I class); and Tuesday of Advent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Tuesday of Advent is commemorated at Lauds and Mass: a double of the I class admits a greater feria (Additiones VII.1).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-09","weekday":"Wednesday","principal":{"name":"Second Day within the Octave of the Immaculate Conception","rank":"semidouble","priority":112,"color":"White","season":"Advent","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Wednesday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Second Day within the Octave of the Immaculate Conception (day within a common octave, semidouble); and Wednesday of Advent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Wednesday of Advent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-10","weekday":"Thursday","principal":{"name":"Third Day within the Octave of the Immaculate Conception","rank":"semidouble","priority":112,"color":"White","season":"Advent","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Thursday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."},{"name":"Saint Melchiades, Pope and Martyr","rank":"simple","priority":155,"color":"Red","season":"Advent","source":"fixed","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Third Day within the Octave of the Immaculate Conception (day within a common octave, semidouble); Thursday of Advent (greater feria); and Saint Melchiades, Pope and Martyr (commemoration only).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Thursday of Advent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Saint Melchiades, Pope and Martyr is commemorated at Lauds and Mass: a simple impeded by a higher office is commemorated (Rubricae generales III.2).","The commemorations are made in this order: Thursday of Advent; and Saint Melchiades, Pope and Martyr (Additiones VII.5).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-11","weekday":"Friday","principal":{"name":"Saint Damasus I, Pope and Confessor","rank":"semidouble","priority":100,"color":"White","season":"Advent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Fourth Day within the Octave of the Immaculate Conception","rank":"semidouble","priority":112,"color":"White","season":"Advent","source":"octave","notes":"Commemorated (Lauds and Mass)."},{"name":"Friday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Saint Damasus I, Pope and Confessor (semidouble); Fourth Day within the Octave of the Immaculate Conception (day within a common octave, semidouble); and Friday of Advent (greater feria).","Days within a common octave are preferred only to simples (Tabella; Additiones III.3).","Fourth Day within the Octave of the Immaculate Conception is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","Friday of Advent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","The commemorations are made in this order: Fourth Day within the Octave of the Immaculate Conception; and Friday of Advent (Additiones VII.5).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-12","weekday":"Saturday","principal":{"name":"Fifth Day within the Octave of the Immaculate Conception","rank":"semidouble","priority":112,"color":"White","season":"Advent","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Saturday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Fifth Day within the Octave of the Immaculate Conception (day within a common octave, semidouble); and Saturday of Advent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Saturday of Advent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-13","weekday":"Sunday","principal":{"name":"Third Sunday of Advent","rank":"semidouble","priority":40,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater Sunday of the II class."},"options":[],"otherCandidates":[{"name":"Saint Lucy, Virgin and Martyr","rank":"double","priority":90,"color":"Red","season":"Advent","source":"fixed","notes":"Commemorated (Lauds and Mass)."},{"name":"Sixth Day within the Octave of the Immaculate Conception","rank":"semidouble","priority":112,"color":"White","season":"Advent","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Third Sunday of Advent (greater Sunday of the II class, semidouble); Saint Lucy, Virgin and Martyr (double); and Sixth Day within the Octave of the Immaculate Conception (day within a common octave, semidouble).","A greater Sunday of the II class yields only to a double of the I class (Additiones IV.1; Tabella).","Saint Lucy, Virgin and Martyr is commemorated at Lauds and Mass: a double or semidouble falling on a Sunday is commemorated, without its ninth lesson (Additiones IV.5).","Sixth Day within the Octave of the Immaculate Conception is commemorated at Lauds and Mass: an impeded day within an octave is commemorated (Additiones VII.5).","The commemorations are made in this order: Saint Lucy, Virgin and Martyr; and Sixth Day within the Octave of the Immaculate Conception (Additiones VII.5).","Colour: Violet, the colour of Advent (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-14","weekday":"Monday","principal":{"name":"Seventh Day within the Octave of the Immaculate Conception","rank":"semidouble","priority":112,"color":"White","season":"Advent","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Monday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Seventh Day within the Octave of the Immaculate Conception (day within a common octave, semidouble); and Monday of Advent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Monday of Advent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-15","weekday":"Tuesday","principal":{"name":"Octave Day of the Immaculate Conception","rank":"greater_double","priority":70,"color":"White","season":"Advent","source":"octave","notes":""},"options":[],"otherCandidates":[{"name":"Tuesday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Octave Day of the Immaculate Conception (octave day of a common octave, greater double); and Tuesday of Advent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Tuesday of Advent is commemorated at Lauds and Mass: a feria of Advent or Lent is always commemorated (Notanda 15).","Colour: White, for an office of Our Lady (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-16","weekday":"Wednesday","principal":{"name":"Saint Eusebius of Vercelli, Bishop and Martyr","rank":"semidouble","priority":100,"color":"Red","season":"Advent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Ember Wednesday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Saint Eusebius of Vercelli, Bishop and Martyr (semidouble); and Ember Wednesday of Advent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Ember Wednesday of Advent is commemorated at Lauds and Mass: a greater feria yielding to an office of nine lessons is commemorated (Notanda 15).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-17","weekday":"Thursday","principal":{"name":"Thursday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Advent. One office falls on this day: Thursday of Advent (greater feria).","Thursday of Advent is the office of the day.","Colour: Violet, the colour of Advent (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-18","weekday":"Friday","principal":{"name":"Ember Friday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Advent. One office falls on this day: Ember Friday of Advent (greater feria).","Ember Friday of Advent is the office of the day.","Colour: Violet, for Ember days and fasting vigils (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-19","weekday":"Saturday","principal":{"name":"Ember Saturday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[{"name":"Vigil of Saint Thomas (anticipated)","rank":"simple","priority":130,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Mass only)."}],"reasoning":["Advent. Falling on this day: Ember Saturday of Advent (greater feria); and Vigil of Saint Thomas (anticipated) (vigil, simple).","A common vigil yields to any office of nine lessons (Rubricae generales VI.1; Notanda 15).","Vigil of Saint Thomas (anticipated) is commemorated at Mass only: a vigil falling in Advent, Lent or the Ember days is not commemorated in the Office (Rubricae generales VI.2), but it is at Mass (Additiones Missalis V.1).","Colour: Violet, for Ember days and fasting vigils (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-20","weekday":"Sunday","principal":{"name":"Fourth Sunday of Advent","rank":"semidouble","priority":40,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater Sunday of the II class."},"options":[],"otherCandidates":[],"reasoning":["Advent. One office falls on this day: Fourth Sunday of Advent (greater Sunday of the II class, semidouble).","Fourth Sunday of Advent is the office of the day.","Colour: Violet, the colour of Advent (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-21","weekday":"Monday","principal":{"name":"Saint Thomas, Apostle","rank":"double_2","priority":50,"color":"Red","season":"Advent","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Monday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Advent. Falling on this day: Saint Thomas, Apostle (double of the II class); and Monday of Advent (greater feria).","A greater feria that is not privileged yields to any office of nine lessons (Tabella; Rubricae generales V.1).","Monday of Advent is commemorated at Lauds and Mass: a double of the II class admits a greater feria (Additiones VII.2).","Colour: Red, for an Apostle or Evangelist (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-22","weekday":"Tuesday","principal":{"name":"Tuesday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Advent. One office falls on this day: Tuesday of Advent (greater feria).","Tuesday of Advent is the office of the day.","Colour: Violet, the colour of Advent (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-23","weekday":"Wednesday","principal":{"name":"Wednesday of Advent","rank":"simple","priority":120,"color":"Violet","season":"Advent","source":"temporal","notes":"Greater feria."},"options":[],"otherCandidates":[],"reasoning":["Advent. One office falls on this day: Wednesday of Advent (greater feria).","Wednesday of Advent is the office of the day.","Colour: Violet, the colour of Advent (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-24","weekday":"Thursday","principal":{"name":"Vigil of the Nativity","rank":"double","priority":22,"color":"Violet","season":"Advent","source":"temporal","notes":"Privileged vigil."},"options":[],"otherCandidates":[],"reasoning":["Advent. One office falls on this day: Vigil of the Nativity (privileged vigil of the I class, double).","Vigil of the Nativity is the office of the day.","Colour: Violet, the colour of Advent, which lasts to the Mass of Christmas Eve inclusive (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-25","weekday":"Friday","principal":{"name":"Nativity of Our Lord Jesus Christ","rank":"double_1","priority":30,"color":"White","season":"Christmastide","source":"fixed","notes":"Saint Anastasia is commemorated in the second Mass only, not in the Office."},"options":[],"otherCandidates":[],"reasoning":["Christmastide. One office falls on this day: Nativity of Our Lord Jesus Christ (double of the I class).","Nativity of Our Lord Jesus Christ is the office of the day.","Saint Anastasia is commemorated in the second Mass only, not in the Office (Rubricae generales IX.5).","Colour: White, for a feast of the Lord (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-26","weekday":"Saturday","principal":{"name":"Saint Stephen, Protomartyr","rank":"double_2","priority":50,"color":"Red","season":"Christmastide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Second Day within the Octave of the Nativity","rank":"semidouble","priority":110,"color":"White","season":"Christmastide","source":"octave","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Christmastide. Falling on this day: Saint Stephen, Protomartyr (double of the II class); and Second Day within the Octave of the Nativity (day within a privileged octave of the 3rd order, semidouble).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Second Day within the Octave of the Nativity is commemorated at Lauds, Vespers and Mass: a double of the II class admits a day within a privileged octave (Additiones VII.2).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-27","weekday":"Sunday","principal":{"name":"Saint John, Apostle and Evangelist","rank":"double_2","priority":50,"color":"White","season":"Christmastide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Third Day within the Octave of the Nativity","rank":"semidouble","priority":110,"color":"White","season":"Christmastide","source":"octave","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Christmastide. Falling on this day: Saint John, Apostle and Evangelist (double of the II class); and Third Day within the Octave of the Nativity (day within a privileged octave of the 3rd order, semidouble).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Third Day within the Octave of the Nativity is commemorated at Lauds, Vespers and Mass: a double of the II class admits a day within a privileged octave (Additiones VII.2).","Colour: White, as the Missal prescribes for this feast (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-28","weekday":"Monday","principal":{"name":"The Holy Innocents, Martyrs","rank":"double_2","priority":50,"color":"Violet","season":"Christmastide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Fourth Day within the Octave of the Nativity","rank":"semidouble","priority":110,"color":"White","season":"Christmastide","source":"octave","notes":"Commemorated (Lauds, Vespers and Mass)."}],"reasoning":["Christmastide. Falling on this day: The Holy Innocents, Martyrs (double of the II class); and Fourth Day within the Octave of the Nativity (day within a privileged octave of the 3rd order, semidouble).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Fourth Day within the Octave of the Nativity is commemorated at Lauds, Vespers and Mass: a double of the II class admits a day within a privileged octave (Additiones VII.2).","Colour: Violet, as the Holy Innocents do not fall on a Sunday (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-29","weekday":"Tuesday","principal":{"name":"Saint Thomas Becket, Bishop and Martyr","rank":"double","priority":90,"color":"Red","season":"Christmastide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Fifth Day within the Octave of the Nativity","rank":"semidouble","priority":110,"color":"White","season":"Christmastide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Christmastide. Falling on this day: Saint Thomas Becket, Bishop and Martyr (double); and Fifth Day within the Octave of the Nativity (day within a privileged octave of the 3rd order, semidouble).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Fifth Day within the Octave of the Nativity is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","Colour: Red, for martyrs (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-30","weekday":"Wednesday","principal":{"name":"Sunday within the Octave of the Nativity","rank":"semidouble","priority":60,"color":"White","season":"Christmastide","source":"temporal","notes":"Minor Sunday. Said on 30 December because the Sunday fell on 25–28 December."},"options":[],"otherCandidates":[{"name":"Sixth Day within the Octave of the Nativity","rank":"semidouble","priority":110,"color":"White","season":"Christmastide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Christmastide. Falling on this day: Sunday within the Octave of the Nativity (lesser Sunday, semidouble); and Sixth Day within the Octave of the Nativity (day within a privileged octave of the 3rd order, semidouble).","The Sunday within the octave fell on 25–28 December, so its office is said on 30 December (Additiones IV.2).","A Sunday is preferred to a greater or lesser double, a semidouble or a simple falling on it (Additiones IV.5).","Sixth Day within the Octave of the Nativity is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","Colour: White, from Christmas to the octave of the Epiphany (Rubricae generales Missalis XVIII)."]},{"date":"2026-12-31","weekday":"Thursday","principal":{"name":"Saint Sylvester I, Pope and Confessor","rank":"double","priority":90,"color":"White","season":"Christmastide","source":"fixed","notes":""},"options":[],"otherCandidates":[{"name":"Seventh Day within the Octave of the Nativity","rank":"semidouble","priority":110,"color":"White","season":"Christmastide","source":"octave","notes":"Commemorated (Lauds and Mass)."}],"reasoning":["Christmastide. Falling on this day: Saint Sylvester I, Pope and Confessor (double); and Seventh Day within the Octave of the Nativity (day within a privileged octave of the 3rd order, semidouble).","In occurrence the days within the octaves of Christmas, the Ascension and the Sacred Heart yield like those of a common octave (Additiones III.2; Tabella).","Seventh Day within the Octave of the Nativity is commemorated at Lauds and Mass: a day within the octave of Christmas, the Ascension or the Sacred Heart is always at least commemorated (Additiones III.2).","Colour: White, for a saint who is not a martyr (Rubricae generales Missalis XVIII)."]}],"url":"https://manualistpress.com/liturgical-calendar/pre-1955/","methodology":"https://manualistpress.com/liturgical-calendar/methodology/","scope":"These are calendar projections: the current calendar as kept in the dioceses of the United States, and the 1962 and pre-1955 calendars as universal calendars. Check an approved local Ordo for the jurisdiction, community, and year concerned.","defaults":"The current calendar keeps Epiphany, Ascension, and Corpus Christi on Sunday; the 1962 and pre-1955 calendars keep them on their own days."}