The universe did NOT have a creation event, it always existed. The
Big Bang was always there and this started the universe.
Time, without it nothing must have always existed, it can not have a
beginning because either would create a moment in time. Without
time it would be meaningless to ask its existence and that of the universe.
When the universe was created it was simply there all the time, existing
in the same way as nothing, as it always has.