Does Time exist as an entity or it is just a measurement unit that is created by Humans? Time is used to measure the rate of change to the objects that are in the Universe. What causes change then? Change is caused by interaction of elements, isolate an element from all others and it will not change; Time = 0. Logical conclusion is that if you can control the change, then  you can control the time.

But if Time does exist as an entity then what would it be and how does it work? Logical conclusion is that it may be tied to Gravity and makes Gravity tick!