There are many things I think of when you think of time and although its usually the common "time is relative" thing where time moves faster at some points and slower at others but i also think of other things. Somethings i think about are things like time travel, if it were possible would you replace yourself in the past so you can correct something. So its like your mind is time traveling and where memory is spectating the past with time travel you could actually control your body in the past and nudge it to do things. If i think of it this way it makes me think that at any time we could be being nudged to do things by our future selves without knowing it. This also, in my opinion, explains why no one in history has seen a duplicate of themselves (or claimed to have so far as I know).
