There hasn’t been a serious attempt to go metric with time. No one uses kiloseconds to replace hours or megaseconds to replace weeks. Some measurements seem to be bound up in human nature, not arbitrary and disposable.
Excellent point. Wonder why.
For all the belly-aching about “fractions” - and 12-base metrics - timing is still done based on 12 and 6 with day 24 hour-60 min-60 sec.