The following lists provide the dates of the Holy Days of Obligation and moveable feasts for the United States. The first lists the dates for the six Holy Days of Obligation observed in the United States; the second lists the dates of the moveable feasts (holy days whose dates change from year to year).

Holy Days of Obligation 2023
Sundays (including Epiphany, Palm Sunday, Easter Sunday, Pentecost, etc.) are always obligatory.

Solemnity of Mary, Mother of God (Sunday, January 1)
Ascension of the Lord (Thursday, May 18 - *Celebrated Sunday, May 21)
* The Roman Catholic Church in a number of countries that do not observe the feast as a public holiday has obtained permission from the Vatican to move observance of the Feast of the Ascension from the traditional Thursday to the following Sunday, the Sunday before Pentecost.
Assumption of the Blessed Virgin Mary (Tuesday, August 15)
All Saints Day (Wednesday, November 1)
Immaculate Conception of The Blessed Virgin Mary (Friday, December 8)
Christmas (Monday, December 25)

Moveable Feasts 2023
Ash Wednesday (Wednesday, February 22)
Palm Sunday (Sunday, April 2)
Holy Thursday (Thursday, April 6)
Good Friday (Friday, April 7)
Holy Saturday (Saturday, April 8)
Easter Sunday (Sunday, April 9)
Divine Mercy Sunday (Sunday, April 16)
Pentecost Sunday (Sunday, May 28)
Trinity Sunday (Sunday, June 4)
Corpus Christi (Sunday, June 11) The Most Holy Body and Blood of Christ
Sacred Heart of Jesus (Friday, June 16)
All Souls' Day (Thursday, November 2)
* All Souls' Day Mass of Remembrance will take place Sat, November 4 at 9 AM
First Sunday of Advent (Sunday, December 3)

Cycles - Lectionary for Mass
Sunday Cycle - YEAR A - November 27, 2022 to November 26, 2023
Weekday Cycle - CYCLE I - January 10 to February 21, 2023; May 29 to December 2, 2023
Sunday Cycle - YEAR B - December 3, 2023 to November 24, 2024