Basically, there’s no such thing as time. Only length. One trip around the Sun is a year, One spin on the Earth’s axis is a day, and the number of spins around the axis in one full trip around the Sun is the number of days in a year. We decided that there were sixty seconds in a minute, and sixty minutes in an hour, because sixty was a lucky number in some ancient civilization (the Sumerians or the Phoenicians, I think). I think it was the Sumerians, I’m not sure. There are 360° in a circle, and 3600 seconds in an hour, so each second is 0.1° around the circumference of the earth.
And at that point, my math breaks down. You’ll just have to take my word for it.
from The Sound of One Hand Typing