Was 2013 a leap year?

To check if any year is a leap year, please type a year number in the form below then click on the button 'Is Leap a Year?'.

Leap Year Calculator

Please fill in a year number
(Examples: 2000, 2019, 1492, ...):

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What is Leap Year and How Many Days Do you Have in a Leap Year?

A leap year has a total of 366 days instead of the usual 365 as a result of adding an extra day (February 29) to the Gregorian Calendar which is the calendar currently used by most modern societies. This calendar was introduced in 1582, to replace the flawed Julian Calendar.

How to Know if Certain Year is a Leap Year

  

The 3 conditions for a given year be a leap year are:

   
         
  1. The year is exactly divisible by four (with no reminder);
  2.      
  3. If the year is divisible by 100 (years ending in two zeros), it is not a leap, except if
  4.      
  5. It is also divisible by 400 (in this case it will be a leap year).
  6.    
        

Examples:

 

Was 2000 a leap year?

  

Will 2020 be a leap year?

  

Will 2018 be leap year?

         

The year being divisible by 4 is a necessary condition, but not sufficient for a year to be leap, but for this century, we may consider sufficient until the year 2098. For this century, is not necessary to check the other conditions. So, we can surely say that: "until 2096, if we want to know if a given year is leap or not, we just need to check if thath year is or is not divisible by 4. So, any year divisible by four is a leap year! (for this centuty).

The leap year system makes the calendar coincide with the cycle of the seasons.

When's the next leap year?

The next leap years until 2098 will be:

2020, 2024, 2028, 2032, 2036, 2040, 2044, 2048, 2052, 2056, 2060, 2064, 2068, 2072, 2076, 2080, 2084, 2088, 2092 e 2096

Leap year List from 1600 to 2100

Year Year Year Year Year
16001696179618961996
16041704180419042000
16081708180819082004
16121712181219122008
16161716181619162012
16201720182019202016
16241724182419242020
16281728182819282024
16321732183219322028
16361736183619362032
16401740184019402036
16441744184419442040
16481748184819482044
16521752185219522048
16561756185619562052
16601760186019602056
16641764186419642060
16681768186819682064
16721772187219722068
16761776187619762072
16801780188019802076
16841784188419842080
16881788188819882084
16921792189219922088
----2092
----2096

Note: 2100 will not be a leap year.


Click on any year below to check if it is a leap year: