Time flies, especially in February, the shortest month. But every four years (with one exception), we get a reprieve with a bonus Leap Day on February 29. When we have a leap year, the calendar ...

Once every four years, an extra day is added to the month of February. That year is considered a leap year, and February 29 is known as a leap day. Leap years exist because it takes the Earth 365 days ...

Leap year. It's a delight for the calendar and math nerds among us. So how did it all begin and why? Have a look at some of the numbers, history and lore behind the (not quite) every four year phenom ...

It's not every year that you see February 29 on the calendar -- and it's not technically every four years either. Thursday is officially leap day. For some, its birthdate, or a day for special deals ...

February is packed with interesting observances, but one that stands out is Leap Day—and the Leap Year that makes it possible! If you’re wondering “When is the next leap year?” or curious about why we ...

Why does Leap Year occur once every 4 years? Our calendar is not entirely in sync with our planet’s trip around the sun. If your birthday is on Feb. 29, what date do you use for official documents, ...