- Tue1The Octave Day of the Nativity of the Lord: Solemnity of Mary, the Holy Mother of GodSolemnity
- Wed2Saints Basil the Great and Gregory Nazianzen, Bishops and Doctors of the ChurchMemorial
- Thu3January 3WeekdayThe Most Holy Name of Jesus (Optional Memorial)
- Fri4Saint Elizabeth Ann Seton, ReligiousMemorial
- Sat5Saint John Neumann, BishopMemorial
- Sun6The Epiphany of the LordSolemnity
- Mon7Monday after the Epiphany of the LordWeekdaySaint Raymond of Penyafort, Priest (Optional Memorial)
- Tue8Tuesday after the Epiphany of the LordWeekday
- Wed9Wednesday after the Epiphany of the LordWeekday
- Thu10Thursday after the Epiphany of the LordWeekday
- Fri11Friday after the Epiphany of the LordWeekday
- Sat12Saturday after the Epiphany of the LordWeekday
- Sun13The Baptism of the LordSolemnity
- Mon14Monday of the first week of Ordinary TimeWeekday
- Tue15Tuesday of the first week of Ordinary TimeWeekday
- Wed16Wednesday of the first week of Ordinary TimeWeekday
- Thu17Saint Anthony, AbbotMemorial
- Fri18Friday of the first week of Ordinary TimeWeekday
- Sat19Saturday of the first week of Ordinary TimeWeekday
- Sun20Second Sunday in Ordinary TimeSunday
- Mon21Saint Agnes, Virgin and MartyrMemorial
- Tue22Tuesday of the second week of Ordinary TimeWeekday
- Wed23Wednesday of the second week of Ordinary TimeWeekdaySaint Vincent, Deacon and Martyr (Optional Memorial) · Saint Marianne Cope, Virgin (Optional Memorial)
- Thu24Saint Francis de Sales, Bishop and Doctor of the ChurchMemorial
- Fri25The Conversion of Saint Paul the ApostleFeast
- Sat26Saints Timothy and Titus, BishopsMemorial
- Sun27Third Sunday in Ordinary Time, or Sunday of the Word of GodSunday
- Mon28Saint Thomas Aquinas, Priest and Doctor of the ChurchMemorial
- Tue29Tuesday of the third week of Ordinary TimeWeekday
- Wed30Wednesday of the third week of Ordinary TimeWeekday
- Thu31Saint John Bosco, PriestMemorial