List of all the leap years in the actual modern Gregorian calendar, from 1582 up to 4818

Why building a list of all the leap years between 1582 and 4818? Why starting and ending with these years?

The first year in the actual calendar (also called Gregorian, or modern calendar) was 1582, when it was instituted by Pope Gregory XIII. Before of this, another calendar, the Julian, was in use, with slightly different rules. The actual modern calendar though will get out of sync by 1 day with the astronomical calendar around the year of 4818 (after ≈ 3236 of years from its creation in 1582).

Please notice that the leap years occur 97 times in every cycle of 400 years. Count them if you wish, in the list below.

The list of the leap years between 1582 and 4818:

What is a leap year? What is a common year?

How often do the leap years occur in the calendar?

Why do we need leap years?

Leap years algorithm. Examples.

When did the leap year originate?

The modern (Gregorian) calendar and the Julian one. Julian calendar adjustment

How accurate is the Gregorian calendar, based on the leap year algorithm?


See all the articles about leap years above grouped together as a single article.


List of all the leap years between 1582 and 4818.


Is it a leap year? Calculate.