Time Indefinite is an autobiographical 1993 documentary film directed by Ross McElwee. It explores themes of grief, mortality, and the convenient disconnection of watching life through a camera lens.

The title comes from a passage from the Bible mentioned by a visiting Jehovah's Witness. McElwee is filming the interaction and focused on adjusting the exposure to try to catch the play of light over the man's face; distracted, he "hears" the phrase about 30 seconds after the man says it and understands it to refer to the unpredictable imminence of death.