Keep the year with the Church. Find Mary within it.
Follow the Church’s year, pray the established Marian devotions, and read St. Louis de Montfort and St. Alphonsus on the mysteries of Jesus and His Mother.
Open the calendarMarian days ahead
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
View every day in December
- FridayDecember 1Ordinary Time
No observance in this view.
- SaturdayDecember 2Ordinary Time
No observance in this view.
- SundayDecember 3Advent
No observance in this view.
- MondayDecember 4Advent
No observance in this view.
- TuesdayDecember 5Advent
No observance in this view.
- WednesdayDecember 6Advent
No observance in this view.
- ThursdayDecember 7Advent
No observance in this view.
- FridayDecember 8Advent
- SaturdayDecember 9Advent
No observance in this view.
- SundayDecember 10Advent
No observance in this view.
- MondayDecember 11Advent
No observance in this view.
- TuesdayDecember 12Advent
No observance in this view.
- WednesdayDecember 13Advent
No observance in this view.
- ThursdayDecember 14Advent
No observance in this view.
- FridayDecember 15Advent
No observance in this view.
- SaturdayDecember 16Advent
No observance in this view.
- SundayDecember 17Advent
No observance in this view.
- MondayDecember 18Advent
No observance in this view.
- TuesdayDecember 19Advent
No observance in this view.
- WednesdayDecember 20Advent
No observance in this view.
- ThursdayDecember 21Advent
No observance in this view.
- FridayDecember 22Advent
No observance in this view.
- SaturdayDecember 23Advent
No observance in this view.
- SundayDecember 24Advent
No observance in this view.
- MondayDecember 25Christmas
- TuesdayDecember 26Christmas
No observance in this view.
- WednesdayDecember 27Christmas
No observance in this view.
- ThursdayDecember 28Christmas
No observance in this view.
- FridayDecember 29Christmas
No observance in this view.
- SaturdayDecember 30Christmas
No observance in this view.
- SundayDecember 31Christmas
No observance in this view.
Read the month’s observance notes and devotional responses
Keep December with the Church.
Begin with the sacred liturgy. On Mary’s days, let the feast continue in the Rosary, consecration, reparation, and imitation of her virtues.
SolemnityMarian
The Immaculate Conception of the Blessed Virgin Mary (Patronal Feastday of the United States of America)
From the first instant of her conception, Mary was preserved from original sin by the grace of Christ. In the Immaculate one, God prepares a Mother entirely His own.
Consecrate yourself through MarySolemnity
The Nativity of the Lord (Christmas)
This year’s observance notes
The civil year crosses two liturgical years. Transfers and precedence below follow the official annual U.S. calendar.
- Saint Joseph is transferred from the Third Sunday of Lent to Monday, March 20.
- The Ascension is shown on Sunday, May 28, as observed in most U.S. dioceses. The ecclesiastical provinces of Boston, Hartford, New York, Omaha, and Philadelphia observe it on Thursday, May 25.
- The Immaculate Heart is not separately observed because June 24 is the Solemnity of the Nativity of Saint John the Baptist.
Keep the Church’s calendar. Open a date for the principal observance, reading references, and permitted choices in the United States Roman Calendar.
Read with the saints. The daily readings draw from Montfort’s True Devotion and The Secret of the Rosary, and St. Alphonsus’s The Glories of Mary. Each passage links to its place in the complete book.
Honor Mary in the mysteries her saints contemplate.
St. Alphonsus gives discourses for Mary’s feasts, meditations on her sorrows, and prayers that lead the reader to her. Montfort directs those consecrated to Jesus through Mary to honor the Incarnation especially on March 25. Read their words, make their prayers your own, and keep the feasts with the Church.
- Receive the mystery.Attend the Church’s liturgy and hear the Word with Mary’s faith.
- Contemplate with her.Pray the Rosary mystery or Marian prayer that opens the feast more deeply.
- Become what you celebrate.Imitate her fiat, purity, charity, sorrow, confidence, and total belonging to Jesus.
The calendar follows the Church’s own order.
Dates and ranks follow the annual calendar for the Dioceses of the United States. The interactive view includes every day of 2026–2028: its principal observance, optional memorials, and a page with reading references, Marian prayer, and a faithful response. Local proper calendars may differ; the annual USCCB editions remain linked for verification.
- 01USCCB · Liturgical Calendar for the Dioceses of the United States
Official annual dates, ranks, colors, readings, and U.S. proper celebrations.
- 02St. Alphonsus de Liguori · The Glories of Mary, Part II
Discourses on Mary’s feasts, her seven sorrows, and her virtues.
- 03St. Louis de Montfort · True Devotion §§243–248
Honoring the Incarnation and the Blessed Virgin in a life of consecration.
- 04Decree · Mary, Mother of the Church
The obligatory memorial established for the Monday after Pentecost.