Holy Days of Obligation: The Full 2026–2027 Catholic Calendar
Short answer
In the United States, there are six Holy Days of Obligation: Mary, Mother of God (January 1), the Ascension of the Lord (movable, most dioceses transfer it to a Sunday), the Assumption of Mary (August 15), All Saints Day (November 1), the Immaculate Conception (December 8), and Christmas (December 25). Catholics are expected to attend Mass on each, the same expectation as a Sunday. When Mary, Mother of God, the Assumption, or All Saints falls on a Saturday or a Monday, the US bishops have decreed the Mass obligation for that day is lifted.
In Catholic practice, Holy Days of Obligation carry the same weight as Sundays: Mass attendance is expected, not optional, unless illness or another serious reason prevents it. The list may look simple on paper, but it trips people up every year, mostly because the Ascension moves with Easter and because a lesser-known Church norm quietly cancels the obligation on three of these days when they fall on certain weekdays. This page lists every US Holy Day of Obligation, the exact 2026 and 2027 dates worked out from the Church calendar, and the Saturday/Monday rule that catches so many parishioners by surprise.
The full list of Holy Days of Obligation in the United States
The USCCB recognizes six Holy Days of Obligation for Catholics in the US: the Solemnity of Mary, Mother of God (January 1); the Ascension of the Lord (forty days after Easter, a Thursday, though most US provinces transfer it to the following Sunday); the Assumption of the Blessed Virgin Mary (August 15); All Saints Day (November 1); the Immaculate Conception of the Blessed Virgin Mary (December 8); and Christmas, the Nativity of the Lord (December 25). Worldwide, the universal Catholic calendar lists additional holy days (such as Epiphany, Corpus Christi, and the Solemnity of Joseph, Spouse of Mary), but individual bishops' conferences may transfer or drop some of these locally, and the US bishops have done exactly that for several of them.
Why the Ascension date is confusing
The Ascension is fixed forty days after Easter Sunday, which always lands on a Thursday, but most US Catholics do not attend Mass for it on a Thursday. In 1999, most US ecclesiastical provinces received permission to transfer the Ascension observance to the following Sunday, folding it into the regular Sunday obligation.
A handful of provinces kept the Thursday date, including Boston, Hartford, New York, Newark, Omaha, and Philadelphia. If you are unsure which your parish follows, your diocese's own calendar or bulletin will say plainly, since this is one of the most common Holy Day questions parish offices field every spring.
The Saturday/Monday rule most Catholics have never heard of
In 1992, the Holy See approved a US bishops' decree that quietly changes the calendar most years: when the Solemnity of Mary (January 1), the Assumption (August 15), or All Saints Day (November 1) falls on a Saturday or a Monday, the obligation to attend Mass that day is lifted entirely. Christmas and the Immaculate Conception are not covered by this rule and remain obligatory regardless of the day of the week they fall on.
The reasoning is pastoral: without the rule, a Saturday or Monday holy day would sit right next to the Sunday obligation, effectively requiring Mass attendance on back-to-back or near-back-to-back days most weeks. The day itself is still a real solemnity worth observing even when the strict obligation is lifted; many parishes still offer a special Mass that Catholics are welcome, though not required, to attend.
Exact 2026 dates
In 2026, Easter falls on April 5, which puts the Ascension on Thursday, May 14 (transferred to Sunday, May 17 in most US provinces). Mary, Mother of God (January 1) falls on a Thursday and is obligatory as normal. The Assumption (August 15) falls on a Saturday, so the Mass obligation for that day is lifted under the 1992 decree, though the solemnity itself remains on the calendar.
All Saints Day (November 1) falls on a Sunday, so it simply coincides with the regular Sunday obligation. The Immaculate Conception (December 8) falls on a Tuesday and Christmas (December 25) falls on a Friday; both are obligatory as usual, since neither is covered by the Saturday/Monday exception.
Exact 2027 dates
In 2027, Easter falls on March 28, which puts the Ascension on Thursday, May 6 (transferred to Sunday, May 9 in most US provinces). Mary, Mother of God (January 1) falls on a Friday and is obligatory as normal. The Assumption (August 15) falls on a Sunday, coinciding with the regular Sunday obligation.
All Saints Day (November 1) falls on a Monday, so the obligation for that day is lifted under the same 1992 decree. The Immaculate Conception (December 8) falls on a Wednesday and Christmas (December 25) falls on a Saturday; both remain obligatory. When Christmas lands on a Saturday, parishes typically offer clear guidance on fulfilling both the Christmas obligation and the following Sunday obligation, since the two are distinct even though they fall close together; checking your own parish bulletin that week is the most reliable way to get the exact local schedule right.
Key Bible verses
- "Remember the sabbath day, to keep it holy." — Exodus 20:8
- "Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another." — Hebrews 10:25
- Jesus himself "went into the synagogue on the sabbath day, as his custom was." — Luke 4:16
Frequently asked questions
How many Holy Days of Obligation are there in the US?
Six: Mary, Mother of God (January 1), the Ascension of the Lord (transferred to Sunday in most provinces), the Assumption (August 15), All Saints Day (November 1), the Immaculate Conception (December 8), and Christmas (December 25).
Is the Ascension always on a Thursday?
Yes, it always falls on a Thursday, forty days after Easter. Most US ecclesiastical provinces have permission to move the Mass obligation to the following Sunday instead; a few provinces, including Boston, New York, and Philadelphia, keep the Thursday observance.
What happens when a Holy Day falls on a Saturday or Monday?
Under a 1992 US bishops' decree, when Mary, Mother of God, the Assumption, or All Saints Day falls on a Saturday or a Monday, the Mass obligation for that specific day is lifted. This exception does not apply to Christmas or the Immaculate Conception.
Is the Assumption a Holy Day of Obligation in 2026?
The Assumption falls on Saturday, August 15, 2026. Because of the Saturday/Monday rule, the Mass obligation for that day is lifted, though the solemnity remains on the calendar and many parishes still offer Mass.