A leap year is a year with an extra day (most commonly referred to as a "leap day") in February, making it 29 days instead of 28 days. Leap years generally occur once every four years, the last being 2008 and the next being 2012.
The current system is:
So 1900 was not a leap year, although the years 1896 and 1904 were. 2000, due to the "back in again" every 400 years, was a leap year
The system above was adopted in various countries at irregular intervals. See See the article here. This resulted in a quadruple-exception in 1712, when February had 30 days.
Leap year may also refer to:
| This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article. |