1200 (number)

1200 was a number.

During his later travels with Amy Pond and Rory Williams, the Eleventh Doctor gave his age as 1200. (TV: A Town Called Mercy) In his travels with Clara Oswald, the Doctor, when asked by the War Doctor, gave his age as "twelve hundred and something, I think, unless I'm lying. I can't remember if I'm lying about my age, that's how old I am." The War Doctor noted that that would make him 400 years older than himself. (TV: The Day of the Doctor)