The month of December is dedicated to the Immaculate Conception, which is celebrated on December 8. The first 2 days of December fall during the liturgical season known as Ordinary Time and are represented by the liturgical color green. The next 22 days fall during the liturgical season of Advent and are represented by the liturgical color purple. The remaining days of December mark the beginning of the Christmas season. The liturgical color changes to white or gold — a symbol of joy, purity and innocence.

The Holy Father’s Intentions for the Month of December
The Elderly: That the elderly, sustained by families and Christian communities, may apply their wisdom and experience to spreading the faith and forming the new generations.

Feasts for December
The feasts on the General Roman Calendar celebrated during the month of December are:

3. First Sunday of Advent, Sunday
6. Nicholas, Opt. Mem.
7. Ambrose, Memorial
8. Immaculate Conception of the Blessed Virgin Mary, Patronal Feastday of the United States of America , Solemnity
9. Juan Diego (USA), Opt. Mem.
10. Second Sunday of Advent, Sunday
11. Damasus I, Opt. Mem.
12. Our Lady of Guadalupe (USA), Feast
13. Lucy, Memorial
14. John of the Cross, Memorial
17. Third Sunday of Advent, Sunday
21. Peter Canisius, Opt. Mem.
23. John of Kanty, Opt. Mem.
24. Fourth Sunday of Advent, Sunday
25. Christmas, Solemnity
26. Stephen, Feast
27. John, Feast
28. Holy Innocents, Feast
29. Thomas Becket, Opt. Mem.
31. Holy Family, Feast