Who owns the measurement of time? When did it start when will it end? What “scientists? Name them
The measurement of time is a human invention. The Lord created time itself, and being immortal, has no need for such measurements that I can see.
An 'hour' is merely an arbitrary measurement of the passage of time. The same thing can be said for a 'mile', which is an arbitrary measurement of a given distance.
Clocks, calendars and the like are merely conveniences that we mortals use to measure our all to brief life, and to help us extract some small bit of meaning and understanding from it.