What is Leap Year? Which years are Leap Year?
A leap year is a situation that occurs every 4 years according to the Gregorian calendar. So a year is 366 days instead of 365 days. Years that last 366 days are called leap years.
Normally there are 365 days in a year.
A Leap Year has 366 days (the extra day is the 29th of February).
How do we know if a year is a leap year?
Leap Years are any year that can be exactly divided by 4 (such as 2008, 2012 2016, 2020, 2024, 2028, 2032 etc)
Why is a leap year?
Because the Earth rotates about 365,242375 times a year. We calculate the years as 365 days. We add the remaining part to February to complete a day in 4 years. And for this reason, February takes 29 days in leap years.