The way I see it there are two options:
- God exists outside of time - He created it.
- God exists inside of time - Time is a constant for all in existence
Here's more detail and debate on both options:
- If God exists outside of time, He is able to see the entire continuum, past present and future, as if looking at a road from high enough up with perfect eyesight - you'd be able to see where it originates and where it ends and everything in between, and touch down on any part of it.
- If God exists inside of time, how could He inspire prophecies? Perhaps an answer to this could be that if you completely control the future, you can predict it.
I personally think God exists outside of time and that He created it. I'm looking for some scriptural backing either way.
Not that it really matters whether He is inside or outside of time. Makes no difference to my relationship with Him. Shouldn't affect yours either.