As Iranians celebrate the Persian New Year, explore the fascinating calendars still used around the world—shaped by sun, moon ...

The origins of April Fools' Day remain unclear, but one popular theory traces it back to 16th-century France, when the ...

In this combination photo Pope Francis walks past flowers as he celebrates Easter Mass in St. Peter's Square at the Vatican April 16, 2017, and Members of the Ukrainian community in Sacramento, Calif.

For centuries, churches have used different methods to calculate the date of Easter. Rarely do they coincide. The search for ...

Just like the current calendar, the Julian calendar had 365 days ... The change to the Gregorian calendar is also the reason the new tax year starts on 6 April. Get the latest financial news ...

Also known as the Hijri calendar, the Islamic calendar is based on the cycles of the moon, unlike the more widely used Gregorian calendar, which is based on the sun. The lunar calendar is used ...

The rest of Great Britain adopted the Gregorian calendar in 1752, but Foula stuck with the old Julian calendar. The change was made because the Gregorian had a 0.002 per cent correction on the ...

A majority of Russian Orthodox churches worldwide use the Julian calendar, which celebrates Christmas on Jan. 7, instead of using the Gregorian calendar proposed by Pope Gregory XIII in 1582.

It is marked as January 1 in the Julian calendar, which was used before the Gregorian calendar. Some countries, including Italy, Poland, Portugal, and Spain, accepted the Gregorian calendars ...