Come to find out, there are plenty of leap year traditions and superstitions all around the world. Plenty of weird and wild ...

Wondering why February is so short? What's a leap year or when? Here's why leap year is every four years and when's the next one.

Known as "leap day," Feb. 29 is tacked on and becomes the last day of the shortest month of the year. And beyond giving people an extra day to reach their goals, there is some science as to why we ...

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 ...

There used to be such a thing as a leap month. In ancient Japan, the new moon, or the first day of the lunar month, was called “saku,” and one “sakubo-getsu” denoted the interval between ...

The annual calendar with its 12 months and additional days in leap years is a gift from the Catholic Church, while the astronomical Julian calendar is a product of the scientific revolution.