Eternal the originator of time - proof.

[Esquilax]

This shows there is an eternal cause who originated time.  But it's obvious a physical thing cannot simply create time and make the whole universe subservient to time, as it would need time to do that.

What if someone traveled back in time and created shit? Not eternal, no infinite regress. Dichotomy, falsified.

As to your point about physical things not creating time, that's an argument from ignorance: just because you can't think of a way, doesn't mean it's impossible, and you don't just get to demand that that's obvious and end the argument there.