Leap years almost always occur every four years, (i.e. in years that are divisible by 4). The only exceptions to this is that years that are evenly divisible by 100 are not leap years, unless they are also divisible by 400.

So this means that the years 1700, 1800, 1900, etc., were not leap years, but the year 2000 was, and the years 2400 and 2800 will be.

en.wikipedia.org/wiki/February_29

February 29, also known as leap day or leap year day, is a date added to most
years that are .... day of Bosnia and Herzegovina independence referendum.
1996 – Faucett Flight 251 crashes in th...

kalender-365.de/leap-years.php

List of every leap year. In leap years, February 29th is added as leap day, which
doesn't exist in a normal year. A leap year is every 4 years, but not every 100 ...

www.miniwebtool.com/leap-years-list/?start_year=1900&end_year=2020

About This Tool. This online tool is used to list all leap years between two years.
Leap years. Leap years are those years divisible by 4, except for century years ...

www.miniwebtool.com/leap-years-list/

About This Tool. This online tool is used to list all leap years between two years.
Leap years. Leap years are those years divisible by 4, except for century years ...

www.accuracyproject.org/leapyears.html

Below you will find a list of all leap years between 1800 and 2100. Each of these
years is also a link to a 12-month calendar for the year noted. Remember, 1800 ...

vpcalendar.net/when-is-the-next-leap-year.html

We all know that the leap year comes every 4th year. We also know that a leap
year means that where will be a February ... Leap Year list from 1,900 to 2,400: ...

www.jetcityorange.com/leap-year/

When is the next leap year? 2016 was a leap year. How to tell if a specific year is
a leap year. What makes it a leap year? 2020 will be the next Leap Year.

www.infoplease.com/spot/leapyear2.html

Most years that can be divided evenly by 4 are leap years. (For example, 2016
divided by 4 = 504: Leap year!) 2. Exception: Century years are NOT leap years ...

www.timeanddate.com/date/leapyear.html

Feb 29, 2016 ... A leap year has 366 days, as opposed to a common year, which has 365. We
add a leap day – February 29 – nearly every four years.