Question

leap year have 366 days .why?

Answer 1

because of EARTH'S rotation and revolution the day and nights and also season will occurs earth complete its rotation and revolution in 23hrs 56mins 9sec...so at the 29 day Feb its takes 24hrs for it...hope it help u and plz mark it as brainliest...

Answer 2

Leap years have 366 days because adding a day to the year is a necessity to maintain the smooth functioning of the Gregorian calendar that we all follow around the world.

This calendar assumes that Earth takes 365 days and a quarter of a day to complete one revolution around the sun.

So, every 4 years, that quarter of a day becomes an entire day and gets added to the year...

Hope this helps you out!!