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Planetary Science

How long does it take for the earth to complete one spin on its axis?


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December 17, 2014 11:16PM
24 hours
If you divide 24 hours by 365 days, you'll see that you're left with about 4 minutes per day. In other words, the Earth rotates on its axis, but it's also orbiting around the Sun, so the Sun's position in the sky catches up by 4 minutes each day.