18 January was the date of the annual Space-Time Police Officers' Ball, where the crew of the Teselecta, the Atraxi and the Shadow Proclamation met to eat some vol-au-vents and share stories of their greatest assets. (PROSE: Time Traveller's Diary [+]Chris Farnell, BBC Children's Books (2020).)
19 January was the date on which the batteries were changed in the ravens at the Tower of London each year. (PROSE: Time Traveller's Diary [+]Chris Farnell, BBC Children's Books (2020).)
24 January was the date of Blue Monday, which did not always fall on a Monday. It was joyfully celebrated by various species of ultramarine skin colour such as Balhoonians, Crespallions, Stenza and Hooloovoo. (PROSE: Time Traveller's Diary [+]Chris Farnell, BBC Children's Books (2020).)
2 February was a common date for time loops. (PROSE: Time Traveller's Diary [+]Chris Farnell, BBC Children's Books (2020).)
11 February was the date of the annual All-Planets Championship Mechboxing Tournament. (PROSE: Time Traveller's Diary [+]Chris Farnell, BBC Children's Books (2020).)
21 February was the date of the annual Zygon Celebrity-Lookalike Competition. (PROSE: Time Traveller's Diary [+]Chris Farnell, BBC Children's Books (2020).)
6 July 3000 BC was the date of the ascension of the Ice Warrior Empress of Mars. (PROSE: Time Traveller's Diary [+]Chris Farnell, BBC Children's Books (2020).)
2 August was the date of the biannual Dalek parliamentary elections. A guide for time travellers reported that they had "so far" voted unanimously for "EXTERMINATE!" every time. (PROSE: Time Traveller's Diary [+]Chris Farnell, BBC Children's Books (2020).)
23 November was a mysteriously critical date in the space-time continuum. (PROSE: Time Traveller's Diary [+]Chris Farnell, BBC Children's Books (2020).)