Who celebrates Leap Year?

Answer 1

If you are born on February 29th, your birthday is February 29th. 40 years later, you will be 40 years old, but your birthday will have only come around 10 times. This is why most people born on February 29th celebrate their birthday on either February 28th or March 1st.

Answer 2

Everybody. It is not a holiday/religious thing. It is a way to catch up on the time lost in 4 years.

Answer 3

People generally do not celebrate Leap Year. It usually just signifies that there is an extra day in February once every four years.

Answer 4

Leap years are not "celebrated". Adding an extra day to the calendar once every 4.1237 years on average is how we keep the average calendar year synchronized with the actual tropical year.