Once again, time doesn't 'come from' anything. That is because time has to be uncaused: causes require time.<quoted text>
I know you don't know. With out it (Time) you've got no Big Bang. Science claims time started 13.7 billion years ago. Where did it come from? What's it doing here? Where's it going? There was nothing then there was time and the Big Bang. And you call my belief a myth, you've got all of everything coming from NOTHING. At least I have it being created by God.
Oh I see now why you're an atheist!!
It's because you believe in NOTHING.
One problem you seem to have is the whole notion of spacetime as a unit. That includes all of space and all of time as a single entity, spacetime. Because causes require time, which is part of spacetime, there can be no cause of spacetime as a whole. Furthermore, asking about 'before' the Big Bang is literally just like asking what is north of the north pole.