Time and space are unique from one another both and independently because of the existence of thought (perception) as well as because those things exist even without perception.
"If a tree falls in a forest and no one is around to hear it, does it make a sound?"
Meta-physicians are split on the answer. Subscribers of substance theory argue a substance is distinct from its properties while subscribers to bundle theory argue an object is solely its sense data.
I believe both contradictory theories are correct. If a tree falls in a forest, and your great-great-great-grandmother was around there to here it, does it make a sound to me, now? Perception of one person is not the perception of another. Yet perception happened. Further, even after great-great-great-grandma died, the tree had still fallen. Things happen whether or not people are there to perceive them, and are (sometimes) recorded because people are there to perceive them; but things can happen even when they're not recorded. ("things happen" a.k.a. "time and space")