And time happens to be nothing.In that case, what do you mean by "beginning"? As far as I understand the word, if something has a beginning then we must have a situation where the thing isn't there and a change from that into a situation where the thing is there. This change in condition mandates the existence of time.
Not so if time is nothing. A beginning of time is the beginning of tic and toc, these are the markers for time. What I would call the conceptual geometric embodiment of nothing. Remove these markers and we would still have time, it just wouldn't tic or toc.Now, when time itself is what is assumed to begin, since a beginning requires time, we arrive at the absurdity of time before time. The rational conclusion is that time cannot begin.