As far as the occurrence of time is concerned, as a subject in the modern sense, physics is of course a very recent thing, while philosophy is an attempt by human beings to explain the world as a whole, so it was born as early as the beginning of human civilization. Of course, on the other hand, a large part of early philosophy focused on explaining the movements and changes of things in the world, so it can also be called "physics". Of course, it's just that its explanation principle is very different from the modern scheme of purely resorting to mechanical causality, and it's difficult to distinguish it strictly from philosophical reasons.