Happy Leap Day! The rare date Feb. 29 is coming up − though it only crops up every four years, it is indeed real. But what about Feb. 30 or March 32?

Easter’s changing date is an issue that began long before the Gregorian calendar (named after Pope Gregory XIII) was instituted in 1582. (The Julian calendar—named for Julius Caesar—was the ...

That Time Feb. 30 Was a Real Date on the Calendar If you were born on a Leap Day and find that aggravating, imagine being born on a day that then ceased to exist entirely.

If you’re looking for new family TV shows to watch with your kids, or searching for the 2025 premiere date for the next ...

Per the Julian calendar, each year began on the spring equinox, which usually fell around April 1. Under the Gregorian Calendar, however, the new year started on January 1.

The Julian calendar, which was the standard at the time, had a fixed date for the spring equinox. The fixed Easter date, based on the Julian calendar, was gradually implemented.

Over the course of centuries, a calendar with no leap years would eventually become totally out of sync with the seasons as we know them. Let’s see what would happen. Leap years exist because we ...

Both the Julian and Gregorian calendars were efforts to account for the movements of the sun and the moon, with the Gregorian calendar being the more successful effort to do so.

Eastern Orthodox churches use the Julian calendar, which can place the date of Easter anywhere between April 4 and May 8 when it's converted back to the Gregorian calendar.