Ascension Day 2024 A Holy Day Of Obligation. The solemnity of the immaculate conception (december 8) falls on a sunday in 2024, so it is transferred to monday, december 9, and the obligation to attend mass is abrogated. But do you have to go to mass?

Holy days of obligation for 2024 for the catholic diocese of dallas. The catechism of the catholic church explains holy days of obligation this way: