The annual feast on December 8, the Solemnity of the Immaculate Conception of the Blessed Virgin Mary, is a Holy Day of Obligation. Catholics are required to exercise their privilege of attending Mass on this day. For a schedule of Holy Day of Obligation Masses in any particular parish, consult that parish's office.
At the Cathedral of Saint Mary of the Assumption, Archbishop Salvatore Cordileone will celebrate the 12:10 pm Mass. The Mass will be livestreamed.