Saturday, August 15th, is not a Holy Day of Obligation. The Assumption of the Blessed Virgin Mary is still a day to celebrate . Catholics should celebrate this Solemnity and are encouraged to attend Mass if they can. However, it is not obligatory. It is important to remember that the Obligation to attend Mass, on Holy Days or Sundays, is not currently in place in the Archdiocese of Philadelphia. We will have our regular morning Mass, on August 15th, at 8:00 AM if you wish you to attend.