Science

He also frequently discusses the concept of infinity.

Another way of saying things about this...

We HAVE to perceive time because we are made of matter that's organic and spirit. And so we humans' organic matter systems have developed the consciousness to notice the death of other organic matter, and the breakdown of inorganic matter (rocks to soil, etc) in time, because both kinds of matter are made of "parts," which take up space.
And so because of matter, space and time exist.

And so we humans of conscious organic matter have perceived, then measured, time from microseconds to light years.

We've also perceived that there is such a thing as no matter beyond time and space, which is spirit, which science doesn't deal with, though many scientists acknowledge its existence.