Just a nitpick from a cosmology aficionado. According to many physicists time doesn't really exist, it's just an emergent property of heat and laws of thermodynamics. Imagine a clock, its hands moving because there is energy stored in the clock's mechanisms. Now, if you suddenly drop temperature to absolute zero then atoms in this clock and everywhere around it stop "vibrating" and everything just stops. You will be unable to perceive the flow of time because the system you find yourself in is completely static, there's no change occuring in it. This doesn't apply to relativity, if you're interested so it looks like we are yet to discover the nature of time.