Leap Day

Leap Day, sometimes considered to be a holiday, occurs on February 29 each leap year. In the Julian calendar, a year is a leap year if it is divisible by 4. In the Gregorian calendar, a year is a leap year if it is either divisible by 4 but not by 100, or divisible by 400.

On this wiki, the "end-of-the-month" interpretation, rather than the "bissextile" interpetation, is followed for all leap years. This means that February 29, not February 24, is considered to be the "Leap Day" for all leap years.