[Cronos]

Yeah, that base 12 got me too. We use the base 10, decimal system because that's the basis for the Indian numerals we use (1,2,3,4...) and it seems easier to us. The Binary system (base 2) is used for computers as they were based on switches which had only two options ON and OFF (1 and 0). The Sumerians and Babylonians used a base 12 system I think because they're the ones who divided a circle into 360 degrees and the year into 360 days. Our concept of time is based on the Sumerian (pretty old huh?) so we have 12*2 hours a day, each hour made of 12*5 minutes, each minute made up of 12*5 seconds. beyond that it's all decimal....

[Elsie]

360 is pretty close to our present 365.24xxx days per year.

I wonder how much mass change of our planet there'd have to be to get the year to have 360 days in it?

[Pyro7480]

I think it's more the fact that there are 360 degrees in a circle.