"The Time of the Doctor" is an episode of the British science fiction television programme Doctor Who, written by Steven Moffat and directed by Jamie Payne, and was broadcast as the ninth Doctor Who Christmas special on 25 December 2013 on BBC One. It features the final regular appearance of Matt Smith as the Eleventh Doctor and the first full appearance of Peter Capaldi as the Twelfth Doctor following his brief cameo in the previous episode "The Day of the Doctor". The episode also features Jenna Coleman as the Doctor's companion Clara Oswald, plus several enemies of the Doctor, including the Daleks, Cybermen, Silence and Weeping Angels.

The episode addresses numerous plot threads developed over the course of Smith's tenure, including the prophecy of the Silence, cracks in the universe, and the Doctor's fate on the planet Trenzalore, while also dealing with the regeneration limit established in the 1976 serial The Deadly Assassin. "The Time of the Doctor" is Smith's fourth and final Christmas special as the Eleventh Doctor.