Quantum events that shape moment-by-moment actuality occur in the shortest time (Planck time). At that scale, time has no meaning. This is in stark contrast to the tale time will tell over the eons of cosmic expanse, from what supposedly started as a singular quantum, then spread through time as a gyral web.
The singular force of time in a timescape is equivalent to all the forces influencing landscape at every scale. But whereas empty space is uniform, time has different characters at the extreme scales of existence.
Our perception of time profoundly influences our perception of change. A drastic change at one scale may appear trivial at another. ~ American evolutionary biologist Stephen Jay Gould
Ultimately, for all its abstract foibles, physics treats time as the pesky vector that it is for all concerned, regardless of scale or scope. The bottom line is that time is as slippery as it seems: an illusion that can’t be grasped however strongly felt. That, at least, is a unified theory of time.
Time is free, but it’s priceless. You can’t own it, but you can use it. You can’t keep it, but you can spend it. Once you’ve lost it you can never get it back. ~ American businessman and writer Harvey MacKay