When did God create time? Day 1
In the Beginning(time), God created the Heavens(space) and the earth(matter)
What was he doing before time? I could make a guess but what God was doing is totally up to him. My guess would be Planning creation but its only my guess.
Time,Space, and Matter exist because the Trinity exists. Paul says visible and Invisible things of God are seen in creation. The universe and what makes it up Scream trinity.
Universe:Time, Space, Matter
Time: Past, Present, Future
Space: Length, Height, Width
Matter: energy in motion producing phenomena—three in one. If there were no energy there could be no motion or phenomena. If there were no motion, there would be no energy or phenomena. If there were no phenomena, it would be because there was no energy or motion.