system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why isn't time in base 10?
gpt
In the days before pocket calculators (most of human history, that is) dividing numbers was a pain in the ass.  Using 60 and multiples of 60 (such as 360 degrees in a circle) made life easier because 60 is cleanly divided by the factors 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 and 60.  That's a lot of useful, easy-to-divide fractions.