I know why but it's stupid and arbitrary and the arbitraryness is what's forcing it.

It's the time. It's always the time.

SI units are all derived from seconds but instead of working with kiloseconds we have minutes and hours and days with a bunch of idiotic conversions.

The "second" you invite time into your measure, you invite some real bullshit ad-hoc pseudo-unit convenience units and fuck them. May as well just go imperial and have 14 rods to the fucking hogshead.