I understand the appeal of having time tracking systems related to easy noticeable celestial bodies movement, but when such enlargement to a multi-planetary con

I understand the appeal of having time tracking systems related to easy noticeable celestial bodies movement, but when such enlargement to a multi-planetary context happen, it makes more sense to think of an entirely new system altogether. Even more so considering that almost everyone relies on tool based time tracking for their activity instead of looking up at the moon or the sun. The first direction towards a solution that comes to mind is about a natural-units derived system, like one based on Planck time or something.