Sure, it's considered a dimension of its own, and seems to change in some circumstances of motion and gravity. But for us humans, it really can SEEM to vary a great deal, depending on circumstances of our own.
This morning I couldn't believe how slowly it seemed to move.
Then again, recalling our twins growing up, when looking back, two decades seemed to fly by. There seem to be different environments, when time changes slowly, or very fast. How so?
Well, when focusing on the clock, time does pass slowly. A watched pot of water never boils.
Staying busy, especially at a job, and time seems to fly by..
As mentioned, time spent raising kids is another such example.
But this morning, time seemed to creep by for me. Of course, in some forms of stroke, these sorts of things can occur. And during severe trauma, especially in youth, protective hypnotic states can make time seem to change. Sadly, it can become ingrained, as a go to experience, whenever facing stress, even decades later. Not particularly adaptive to adult life.
Who knows? Perhaps visiting aliens, much more advanced than we are, can alter time for us.
Who really knows?