If human culture spread across several planets and no one lived on Earth, chances are a new way of tracking time would develop for the sake of inter-planetary communication, trade, and travel.
I'm writing this science fiction novel ... so I made this chart for my own perspective.
After all, if a day wasn't the measurement of the rotational speed of the planet you inhabited..why would it matter what it measured? Why not go base 10?
This post originally appeared on David Shultis' blog.