Leap Years Calculator. Check if the Year Is a Leap Year or a Common One. Find the Last Leap Year Before and the Next Leap Year After. The Leap Year Algorithm

Check if the year meets the conditions of the Leap Year Algorithm

Leap Year Calculator: Is it a leap year?

The leap year algorithm. The three conditions to check:

  • 1) A year that is divisible by 4 (there is no remainder when divided by 4) is a leap year.
  • 2) But if the year is also divisible by 100, it's not a leap year, unless....
  • 3) ... Unless it's divisible by 400.

Latest checked up years / Is it a leap year or a common year?

Is 2015 a leap year or a common year? When was the last leap year before 2015? When is the next leap year after 2015? Jun 13 17:05 UTC (GMT)
Is 2032 a leap year or a common year? When was the last leap year before 2032? When is the next leap year after 2032? Jun 13 17:02 UTC (GMT)
Is 1753 a leap year or a common year? When was the last leap year before 1753? When is the next leap year after 1753? Jun 13 16:58 UTC (GMT)
Is 1796 a leap year or a common year? When was the last leap year before 1796? When is the next leap year after 1796? Jun 13 16:29 UTC (GMT)
Is 3232 a leap year or a common year? When was the last leap year before 3232? When is the next leap year after 3232? Jun 13 16:14 UTC (GMT)
Is 1992 a leap year or a common year? When was the last leap year before 1992? When is the next leap year after 1992? Jun 13 16:10 UTC (GMT)
Is 1716 a leap year or a common year? When was the last leap year before 1716? When is the next leap year after 1716? Jun 13 15:56 UTC (GMT)
Is 2892 a leap year or a common year? When was the last leap year before 2892? When is the next leap year after 2892? Jun 13 15:55 UTC (GMT)
Is 2943 a leap year or a common year? When was the last leap year before 2943? When is the next leap year after 2943? Jun 13 15:54 UTC (GMT)
Is 1827 a leap year or a common year? When was the last leap year before 1827? When is the next leap year after 1827? Jun 13 15:53 UTC (GMT)
Is 4572 a leap year or a common year? When was the last leap year before 4572? When is the next leap year after 4572? Jun 13 15:48 UTC (GMT)
Is 1990 a leap year or a common year? When was the last leap year before 1990? When is the next leap year after 1990? Jun 13 15:45 UTC (GMT)
Is 2206 a leap year or a common year? When was the last leap year before 2206? When is the next leap year after 2206? Jun 13 15:44 UTC (GMT)
» New: All the Calculations Performed by Our Visitors: Leap Years Calculations. Data organized on a Monthly Basis
» [This dataset no longer updated] All the users checked up years / Leap Years or Common Years

Leap Years. Common Years. What are they and why do we need them? The leap years algorithm.

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

A leap year contains 1 extra day, February 29th, over an ordinary year, 366 vs. 365.

How often do the leap years occur in the calendar?

Nearly once every four years, 97 leap years at every 400 years.

Why do we need leap years?

They keep the calendar year synchronized with the astronomical year, preventing us, for example, from celebrating Christmas in November.

The leap years algorithm.

Every year that is evenly divisible by 4 is a leap year, except for years that are evenly divisible by 100, but these years are leap years if they are evenly divisible by 400:

Examples of leap years.

  • Leap years multiples of 4 but not of 100 nor of 400: 1992, 1996, 2004, 2008, 2012, 2016, 2020, 2024, 2028;
  • Common years (NOT LEAP YEARS) multiples of 100, but not of 400: 1700, 1800, 1900, 2100, 2200, 2300;
  • Leap years multiples of 400: 1600, 2000, 2400.

Articles on the leap years

1. What is a leap year? What is a common year?

2. How often do the leap years occur in the calendar?

3. Why do we need leap years?

4. Leap years algorithm. Examples.

5. When did the actual concept of the leap year originate?

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

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

List of all the leap years between 1582 and 4818.