A leap year is one in which there are 366 days in a year instead of 365 days, that additional day is in the month of February. It happens every 4 years, but not every 100 years, then again every 400 years. So in simple words any year which is divisible by 4 is a leap year but the above condition of 400 year has to be met. Given below is the list of leap years from 19^{th} to 21^{st} century-

**1904****1908****1912****1916****1920****1924****1928****1932****1936****1940****1944****1948****1952****1956****1960****1964****1968****1972****1976****1980****1984****1988****1992****1996****2000****2004****2008****2012****2016****2020****2024****2028****2032****2036****2040****2044****2048****2052****2056****2060****2064****2068****2072****2076****2080****2084****2088****2092****2096****2104**

As one can see that 1900 was not a leap year but 2000 was and 2100 will not be a leap year.