"The Solemnity of the Immaculate Conception, a Holy Day of Obligation, falls on Saturday, December 8 this year. As this is the patronal feast day of the United States and of the Archdiocese the obligation to attend Mass is never dispensed." Masses for the celebration will take place as follows 7 PM on Friday 12/7 (bilingual) and 8:30 AM on Saturday 12/8 (English).