Leap years almost always occur every four years, (i.e. in years that are divisible by 4). The only exceptions to this is that years that are evenly divisible by 100 are not leap years, unless they are also divisible by 400.
So this means that the years 1700, 1800, 1900, etc., were not leap years, but the year 2000 was, and the years 2400 and 2800 will be.
edit]. In the Gregorian calendar, the current standard calendar in most of the
world, most years that are multiples of 4 are ...
Leap years and leap days are used to allow our calendar to keep up with the
Earth's revolutions around the Sun. Nearly every 4 years is a Leap Year in our ...
A Leap Day, February 29, is added to the calendar in Leap Years. This extra (
intercalary) day makes the year 366 days long – and not 365 days, like a
After prompting endless questions in discussion boards and other forums, this quirk of the calendar
turned out to be a vastly successful hoax. To change from their current Julian date to the Gregorian one the Swedes needed to lose eleven days; however, instead of dropp... More »
Learn what leap year is, when it is and why we need it.
Find out the next Leap Day, how to calculate Leap Years, Leap Year folklore, and
more ... 29 which is added nearly every 4 years to today's Gregorian calendar.
Hence, according to the rules set forth in the Gregorian calendar leap years have
... An extra day added to the calendar every four years at leap year helps ...
Feb 29, 2012 ... Find out why we need February 29, when leap day was adopted, and how
cultures with other systems for tracking time handle their calendars.
However, as we can see from the leap years listed below - there are years in
which we do not have a leap year. This is as a result of the Gregorian calendar ...