Christmas Day was traditionally observed on 25 December, following Christmas Eve. Christmas dinner was eaten on this day.
History
In 2007, the Sixth Doctor and Evelyn Smythe celebrated Christmas with the Cracker family. (PROSE: The Crackers)
In 2012, after an absence of two years, the Eleventh Doctor finally reunited with Amy Pond and Rory Williams at their home in London, joining them for Christmas dinner. They saved a place at the table for him every year. (TV: The Doctor, the Widow and the Wardrobe)
In 2015, Erimem, Andy Hansen, Ibrahim Hadmani, Helena and Matt Hansen celebrated Christmas together in Ibrahim and Helena's flat. (PROSE: In Search of Doctor X)
In 2058, the crew of Bowie Base One celebrated their first Christmas on Mars. They ate dehydrated protein for Christmas dinner. (TV: The Waters of Mars)