Your comment points out the real absurdity which is why are so stuck on the machinations of numbers on a clock, and ~24 granular timezones rather than just having humans be human and 1) get the sleep they need and 2) be productive when it makes sense to, regardless of the digits.
I doubt pre-industrial people thought to hard about if they chopped wood at exactly 9am, or if it might have been 8:37 or even 11am.