If I could have any super power...

If I got to have a super power, I'd want to be able to tell time. No, really think about it, how cool would this be? "Time, go back 20 minutes... I really want to enjoy that steak again. Time, go back 20 years, I really want to enjoy my childhood again. Time go forward 20 years, hanging around my childhood friends as an adult was creepy, lets stay in the 'future' for now."