So with those three statuses must time then be linear? — TiredThinker

Neither linear nor non-linear. It simply exists as an integral part of spacetime. It can be played with, however: Complex and Distorted Time

What do you mean? The past can't actually also be the future?

Time can be thought of as "linear" in a general sense, if not the math definition. Each tick of the clock moves us in a regular sense along a time line. I don't see any kind of circularity in the passage of time, other than repeated societal behaviors, like wars. Time itself cannot be manipulated except in the extreme instances of time dilation. Or at least it appears that way.

That's what I figured. I wouldn't even use stupid human behavior as a reference. Lol. I assume if time was truly circular entropy couldn't be possible?