Knitting was a hobby practised on Earth.
The Eighth Doctor once joked for the Sisterhood of Karn to bring him knitting when he had four minutes left to take the Elixir of Life and regenerate, which he considered to be "ages." (TV: The Night of the Doctor)
The Eleventh Doctor claimed to be late for either a biplane lesson or a knitting lesson in 1911. (TV: The Impossible Astronaut) He later read Knitting for Girls while waiting for the Teselecta crew, disguised as the late Gideon Vandaleur, to show themselves at a bar. (TV: The Wedding of River Song)