Question

what is a leap year how it occurs​

Answer 1

A common year has 365 days and a leap year 366 days, with the extra--or intercalary--day designated as February 29. A leap year occurs every four years to help synchronize the calendar year with the solar year, or the length of time it takes the earth to complete its orbit around the sun, which is about 365¼ days.

Answer 2

hey mate

a leap year is an year having 366days

It occurs after each 4 years as there are 365 1/4 day in a normal year

hope it helps you