February is packed with interesting observances, but one that stands out is Leap Day—and the Leap Year that makes it possible ...

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 ...

they technically only have a birthday every four years on the actual leap day. Those leapers don’t get a birthday this year. Wondering what exactly is a leap day or leap year? Here's what to know.

Leap years help to keep the 12-month calendar matched up with Earth’s movement around the Sun. After four years, those leftover hours add up to a whole day. In a leap year, we add this extra day ...