Just see and check that Its a Leapyear or Normal Year!!
Improved calculation of leap years "The Gregorian Calendar therefore omits 3 leap days every 400 years, which is the length of its leap cycle. This is done by omitting February 29 in the 3 century years (integer multiples of 100) that are not also integer multiples of 400. For example, 1700, 1800, 1900, 2100 and 2200 are common years, but 1600, 2000 and 2400 are leap years." Source: http://en.wikipedia.org/wiki/Leap_year
