2024 is a leap year. Here is everything you need to know about leap years, what they are, and why they are important.

Since a lunar year is only about 355 days long, key dates on the Islamic calendar move 10 to 11 days earlier each year on the solar calendar.

It's a leap year, and today — Thursday, Feb. 29 — is Leap Day. The calendar oddity means this year is actually 366 days long, instead of the regular 365. Here's why leap years occur.

Humans have synced their calendars to the sun and moon for centuries, but every so often, these systems need a little correction.

Crescent for the new Islamic year was sighted this evening. The new Hijri year begins tomorrow.”Another post reads:The 1st of Muharram 1447 has commenced after Maghrib on Wednesday 25th June 2025The ...

July 2nd marks Halfway Day, the midpoint of the year, offering a chance to reflect on goals and reset intentions. It's a ...

Day-to-day calendar (one that can be used again and again, in any year). 366 bite-size entries, with anecdotes, observations, fun facts, and other confections tied to a single song, perfect for ...

The day is also given to the shortest month of the year. When is the next leap year? The next one is Feb. 29, 2028, and then in 2032 and 2036.

For 366 days, six analog astronauts lived and worked in a sealed environment in Russia, an Earth-based stand-in for interplanetary missions of the future.

Other calendars around the world have their own ways of keeping time. The Jewish calendar, which is regulated by both the Moon and the Sun, is like a big puzzle with a 19-year cycle.

Other calendars around the world have their own ways of keeping time. The Jewish calendar, which is regulated by both the Moon and the Sun, is like a big puzzle with a 19-year cycle.

Humans have synced their calendars to the sun and moon for centuries, but every so often, these systems need a little correction.