This year Christmas is on a Monday.
My wife read in a neighboring parish's bulletin that we had to go to Mass on the Fourth Sunday of Advent (i.e. sometime Saturday night or Sunday Morning) and this greatly distressed my daughter who unfortunately wants maximum presents and minimum Mass for Christmas.
Catholicism.chat told me that:
Paragraph 2180 of the Catechism states that the precept of participating in the Mass is satisfied by assistance at a Mass celebrated on the evening of the preceding day. Therefore, if you attend Mass on Christmas Eve, you fulfill your obligation for both the fourth Sunday of Advent and Christmas.
So, if a person were to attend a vigil Mass on Saturday, I can see that not satisfying the obligation to go to Mass on Christmas. But, if a person went to Mass at 4:00 PM or later on Sunday, would that satisfy the obligation for both Christmas and the Fourth Sunday in Advent?