Christmas Eve : Early morning, shopping for stuff we've forgotten.
Afternoon, meet family at the station.
Get children ready for Family Mass at 5pm. Get back and they can have a bath, have supper, put out mince pie and things for Santa. They go to bed by 8.30 or whenever NORAD hints that Father Christmas is hitting Europe.
Anyone who didn't go to the Family Mass goes to Midnight Mass, so they leave at 11.15 ish.
Whoever is left behind can put the Santa stuff under the tree.
Christmas Day : Children up at 5, no breakfast to speak of, but there are crackers and bread rolls and things there for people who want them.
The presents are all opened in the morning. Late lunch at about 3pm.
I traditionally forget about the pudding, and managed to burn it quite spectacularly one year.
The evening is full of people falling asleep in improbable places, and making huge sandwiches, and watching Christmas specials and Dr. Who.