I think it's more trying to make things which vary fit in a "you shall not vary" square box that is the problem. Technically, this metric/decimal method makes more sense for what we're trying to do, but it's less of a "time" thing than it is a "let's have the same numbers every day so we can agree on when synchronous events need to happen." To _measure_ elapsed time, using a fixed unit such as a second is perfectly fine.
I think it's more trying to make things which vary fit in a "you shall not vary" square box that is the problem. Technically, this metric/decimal method makes more sense for what we're trying to do, but it's less of a "time" thing than it is a "let's have the same numbers every day so we can agree on when synchronous events need to happen." To _measure_ elapsed time, using a fixed unit such as a second is perfectly fine.