Question

Why do we have a leap year after every four years?​

Answer 1

Answer:

It takes approximately 365.25 days for Earth to orbit the Sun — a solar year. ... To make up for the missing partial day, we add one day to our calendar approximately every four years. That is a leap year.

Answer 2

Answer :

We have a leap year in our calendar every four years since the Earth takes 365.25 days to orbit, but in the calendar we have 365 days, so we add an extra day which makes a leap year have 366 days.