The word noon can be traced back to the Old English word nōn, which described the ninth hour after sunrise—about 3 PM. Medieval Christian monks regularly prayed at that time. It is thought that “noon” may have moved from 3 PM to 12 PM because the monks had to fast each day until those prayers were said.

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Our Days Are Numbered: 7 Crazy Facts About Calendars

For thousands of years, we humans have been trying to work out the best way to keep track of our time on Earth. It turns out that it’s not as simple as you might think. list, calendar, chronology, months, years, time, Gregorian, JulianThe Gregorian calendar—the calendar most widely used today—was