What is leap year ? || Why in February only 28 days in urdu|Hindi

What is leap year ? || Why in February only 28 days in urdu/Hindi
leap day

leap year, leap years, leapyear, what is leap year, astronomy, gregorian calendar, julian calendar, science, Gregorian Calendar, Educational, Julian Calendar, intercalary year, bissextile year, history, calendar, 2012 leap year, 2012, february 29, leaplings, astronomical year, space, epipheo, animation,
What is leap year ? || Why in February only 28 days in urdu/Hindi,why feb has 28 days,february 28 days,february 29 days,what is leap year,why does february only have 28,why february have 28 days in hindi,reason of 28 days in feb,logic behind calender days,roman calender,leap year full movie,leap day,leap year,leap years,leapyear,astronomy,gregorian calendar,julian calendar,Gregorian Calendar,Julian Calendar,calendar,2012 leap year,2012,february 29

What is leap year ? || Why in February only 28 days in urdu/Hindi,why feb has 28 days,february 28 days,february 29 days,what is leap year,why does february only have 28,why february have 28 days in hindi,reason of 28 days in feb,logic behind calender days,roman calender,leap year full movie,leap day,leap year,leap years,leapyear,astronomy,gregorian calendar,julian calendar,Gregorian Calendar,Julian Calendar,calendar,2012 leap year,2012,february 29,epipheo,