A leap year is a year in which an extra day is added to the calendar in order to synchronize it with the seasons. 2008 is a leap year, which means that it has 366 days instead of the usual 365 days that an ordinary year has. An extra day is added, February 29, which is called an intercalary day or a leap day.

Leap Year is announced by that last day of February that only appears every four years. Leap Year has been around for thousands of years. February usually has 28 days, but during Leap Year 29. Why is there a February 29th?

Julius Caesar first created Leap Year in 46 B.C. so that the calendar year would match the solar year. The solar year, or the amount of time it takes the earth to travel around the sun, is about 365.2422 days. The extra .2422 creates an entire extra day every four years.

Rules for Determining a Leap Year
Most years that can be divided evenly by 4 are leap years.
For example, 2008 divided by 4 = 502: Leap year..