Holydays of obligation are specific days on which Catholics are required to attend Mass. In 2025, the holydays of obligation in the United States are:
- New Year’s Day (January 1)
- Epiphany (January 6)
- Ascension Thursday (May 29)
- Corpus Christi (June 19)
- Assumption of the Blessed Virgin Mary (August 15)
- All Saints’ Day (November 1)
- Immaculate Conception (December 8)
- Christmas (December 25)
The obligation to attend Mass on these days is based on the Church’s teaching on the importance of the Eucharist. The Eucharist is the sacrament in which Catholics receive the body and blood of Christ. It is considered the source and summit of the Christian life, and it is essential for Catholics to receive the Eucharist regularly.
