Holy Days of Obligation are days other than Sundays on which Catholics are required to participate in the Mass. We also abstain from unnecessary works, "which hinder the worship to be rendered to God, the joy proper to the Lord’s day, or the suitable relaxation of mind and body." (Canon 1247 of the Code of Canon Law).

Please note: Any feast celebrated on a Sunday, such as Easter, falls under our normal Sunday obligation and is not included in the list of Holy Days of Obligation

January 1: Solemnity of Mary the Mother of God
On this day, we are reminded of the role that the Blessed Virgin played in the plan of our salvation. It is celebrated on January 1 each year. 

40th day after Easter:  Feast of the Ascension
Also known as Solemnity of the Acension of the Lord, this feast is traditionally celebrated on a Thursday, the 40th day of Easter and commemorates the bodily Ascension of Jesus into heaven.  In the Archdiocese of Los Angeles, we celebrate it on the following Sunday.

2022: Sunday, May 22

August 15: Assumption of the Blessed Virgin Mary
This day commemorates the death of Mary and her bodily assumption into heaven, before her body could begin to decay--a foretaste of our own bodily resurrection at the end of time. It is celebrated on August 15 each year.

November 1: All Saints' Day

Celebrated to honor the saints who constantly intercede with God for us. However when it falls on a Saturday or a Monday, the obligation to attend Mass is abrogated.

December 8: Feast of the Immaculate Conception
On this day, we celebrate the solemn belief in the Immaculate conception of the Blessed Virgin Mary. It s celebrated on December 8 each year.

December 25: Christmas
On this day, we celebrate the birth of our Lord, Jesus Christ.