To answer that question, we have to define time.
Is there a before and even an after? In my view time is a feeling.
You only feel time when you "need" it.
Time, and especially the clock is a measure for human to have some hold on.
Same as language I suppose.
Else it would be total chaos and we would have a very different way of communicating and meeting.
But your time is different than my time. You can be years older and still be younger and visa versa.

What is before time? is in that case the same question as; what is before love? Before joy? etc.

I love the question btw, It really makes my brain work, and that is something I like to have all the....uh...well; time