system
Given the following post, respond as if you're commenting on Reddit:
human
Why aren't the units of time based on tens?

Why are there 60 seconds in a minute and minutes in an hour instead of 10 or 100? Is it just how the units were derived? Does it have anything to do with fitting them into a calendar?
gpt
They were first used by the Babylonians, who used a base 60 number system. 

They also were the first to use degrees to do circular geometry, which is why we have 60 arcseconds in an arcminute, 60 arcminutes in a degree, and 360 (6*60) degrees in a circle.