BODY CLOCK / PHYSICAL ENGINE / SLEEP PATTERN

TL;DR
Bad timing, bad engine.
Different person needs different sleep.
Without considering people standardising time is ignorant.
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EXTENDED / NON-TL;DR

All of us have different internal CLOCKS and timing systems for our ENGINE / BODY / MACHINE.

To dis-respect that becomes negative to you and others with mistimed / mistreated usage.

An engine works well with timing.
Bad timing, bad engine.

I think you get the idea... just we're going to have to accept we're different a bit more than assuming time is the same for us, both in perception and way we do things and feel best.