2012 is a year in the 21st century.
- Assuming a normal election year, in the original timeline, a female was elected President of the United States.
That timeline was overwritten when Doc Brown went back in time to prevent a nuclear holocaust from happening in 2045, so it is possible, but not confirmed, that Barack Obama won re-election to a second term, as he did in reality.
- Tuesday, November 20: Hasslein Books published A Matter of Time: The Unauthorized Back to the Future Lexicon.
- Thursday, November 29: "How Looper Should Have Ended", a short video combining the movie Looper and Back to the Future, is uploaded to YouTube by How It Should Have Ended.