A complete list of Holy Days of Obligation and their observances for 2025 are:

Wednesday, January 1, 2025
Solemnity of the Mary, the Holy Mother of God                    

Thursday, May 29, 2025
Solemnity of the Ascension of the Lord

Friday, August 15, 2025
Solemnity of the Assumption of the Blessed Virgin Mary

Saturday, November 1, 2025
Solemnity of All Saints
Since this Holy Day falls on a Saturday, the obligation is suspended.

Monday, December 8, 2025
Solemnity of the Immaculate Conception of the Blessed Virgin Mary
Patronal Feast of the United States of America 

Thursday, December 25, 2025
Solemnity of the Nativity of the Lord (Christmas)
Please note:  In the Archdiocese of Philadelphia, the Vigil Mass cannot be celebrated before 4:00 PM.