January

January was a month which contained New Year's Day, and was the first month of the year. (DWN: Doctor Who)

It was also a month that, on Earth at least, was characterised by great commercial activity in the form of after-Christmas sales. The Eighth Doctor once offered to take Samantha Jones back to Earth in time for these sales. (EDA: Genocide)

In 1918, January was the month that rationing of sugar began in Britain during World War I. Some people, like Constable Albert Briggs, therefore regarded January 1918 as the first time they really understood the deprivations of war. (EDA: Casualties of War)