The Feast Of The Immaculate Conception Of The Blessed Virgin Mary is December 8, which is a Holy Day of Obligation. A Vigil Mass will be held Friday December 7 at 7:30 PM and Mass will be held Saturday December 8 at 9:00 AM.  There will be 5:00 PM Mass on December 8 however this Mass does not satisfy both obligations to attend Immaculate Conception Mass and Sunday Mass. All Masses will be in the Church.

Prayer on the Solemnity of the Immaculate Conception

Father,
The image of the Virgin is found in your Church.
Mary had a faith that your Spirit prepared and a love that
never knew sin,
for you kept her sinless from the first moment of
her conception.
Trace in our actions the lines of her love,
in our hearts her readiness of faith.
Prepare once again a world for your Son who lives and reigns with you and the Holy Spirit, one God, forever and ever.
--- from Catholic Household Blessings and Prayers

For the December 8, 2018 Daily Reading visit the website of the United States Conference of Catholic Bishops at www.usccb.org/bible/readings/120818.cfm.