Day

A day was a unit of time which typically lasted 24 hours on Earth. (TV: Last of the Time Lords)

A galactic day was used by the Daleks. (COMIC: Return of the Daleks)

Met by Sunday Mirror journalist Vivien Rook at 10 Downing Street, First Lady Lucy Saxon complained that it had been a "hell of a day", however, she was convinced to give a 20 minute interview. (TV: The Sound of Drums)