Also maybe some experts can help me. On day 1, God separate the light and darkness. I wonder is that a time separation or spacial separation? If that light in day 1 is God, how did it work? If that light is not God, how did it work.Note in day 1, it was heaven, earth, water, light. No light objects.
So I would doubt day 1 is same as today one day.
The early days not very easy to grasp.