Updated: October 23, 2019

The Holy Days of Obligation for the 2019-2020 school year are:

The Solemnity of All Saints on Friday, November 1, 2019: Masses at St. Catherine of Siena are at 8:30 am and 7:00 pm.

The Solemnity of the Immaculate Conception falls on Sunday, December 8, 2019 and is therefore transferred to Monday, Decemer 9; however the obligation to attend Mass is waived.

The Solemnity of the Nativity of Our Lord Jesus Christ on Wednesday, December 25, 2019. See bulletin for complete Mass schedule.

The Solemnity of Mary, Mother of God on Wednesday, January 1, 2020.

The Solemnity of the Ascension of our Lord on Thursday, May 21, 2020 will be celebrated on the following Sunday in the Diocese of Arlington.

Summer of 2020:

The Solemnity of the Assumption of the Blessed Virgin Mary, August 15 falls on a Saturday in 2020 and the obligation is waived.