I might be on totally the wrong track but could it be God? Father, Son & Holy Ghost (The Holy Trinity).
We know about Jesus and where he's been but no-one knows exactly where he is now.
r u sure that time is right answer, sounds a bit obscure to me, i thought it might be past present and future, it makes more sense, you are now one (present), past knows where you've been and future doesn't know where you'll be.