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

A calendar notation in which the date is represented by one number. For example, the Julian date for December 11, 1942 is 2430705; while December 12, 1942 is 2430706. The Julian date is widely ...

In 2026, it will be April 5. In 2027, it will be March 28. All of those dates are on the Gregorian calendar. For the Julian calendar, it will be: April 20 (2025), April 12 (2026), May 2 (2027 ...