In this video I show you what it would look like to slow the speed of light down to around walking speed. So with just walking around town you would experience relativistic effects. I talk about time ...

Chinese researchers say they have created a new "lunar time ephemeris" that can calculate the time on the Moon and sync it with time on Earth. Currently, there is no agreed-upon time zone on the Moon.

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Photo-Illustration by Chloe Dowling for TIME (Source Images: master1305/Getty Images, Penpak Ngamsathain/Getty Images) The days between the last day of one school year and the first day of a new one ...