Winter solstice
Winter solstice was the time when the hours of daylight were the shortest, and would soon increase. On the Northern Hemisphere of Earth, it was celebrated December 21st. (TV: A Girl's Best Friend [+]Loading...["A Girl's Best Friend (TV story)"], AUDIO: The Stuff of Nightmares [+]Loading...["The Stuff of Nightmares (BBC audio story)"]) Associated with Christmas, it was celebrated on a planet controlled by the Sardick family in the 44th century, and was known as the Crystal Feast. The Eleventh Doctor and Kazran Sardick both called this a celebration of being "halfway out of the dark". (TV: A Christmas Carol [+]Loading...["A Christmas Carol (TV story)"])
On 25 December, a newsreader reported that British government sources anticipating the Sycorax invasion of Earth were are calling it "our longest night". (TV: The Christmas Invasion [+]Loading...["The Christmas Invasion (TV story)"])
Persis' planet celebrated something similar on the winter solstice, called the Deepest Dark. Families gathered every year and celebrated with a feast, which usually included food, drink and arguments. (AUDIO: Mighty and Despair [+]Loading...["Mighty and Despair (audio story)"])