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Leap year

en.wikipedia.org/wiki/Leap_year

A leap year is a year containing one additional day added to keep the calendar year synchronized with the astronomical or ...

Leap Year Nearly Every four years - Timeanddate.com

www.timeanddate.com/date/leapyear.html

Feb 29, 2016 ... A leap year has 366 days, as opposed to a common year, which has ... Leap years are needed to keep our modern day Gregorian calendar in ...

Leap Year 101 – Next, When, List, Days, Calendar, Years ...

www.infoplease.com/spot/leapyear2.html

Learn what leap year is, when it is and why we need it.

2016 is a leap year | Earth | EarthSky

earthsky.org/earth/why-do-we-need-leap-years

Feb 29, 2016 ... We need leap years to help synchronize our calendar with Earth's orbit around the sun and the actual passing of the seasons.

When Is The Next Leap Year? Why February 29th Happens Every ...

www.ibtimes.com/when-next-leap-year-why-february-29th-happens-every-four-years-how-it-started-why-1814702

Feb 12, 2015 ... February_calendar The Gregorian calendar, also called the Western or Christian calendar, was introduced in 1582 and named for its creator, ...

Why do we have leap year? - Ask History

www.history.com/news/ask-history/why-do-we-have-leap-year

Feb 19, 2014 ... Nearly every four years, we add an extra day to the calendar in the form of February 29, also known as Leap Day. Put simply, these additiona...

Leap Year: EnchantedLearning.com

www.enchantedlearning.com/time/leapyear/

That is why we have a leap year roughly every 4 years, to synchronize the seasons with our calendar; if we had a 365-day calendar every year, the seasons  ...

Leap years - 2016 Calendar

www.calendar-365.com/leap-years.html

Leap years. All upcoming leap years are listed on this page. Every leap year is clearly stated, see also other interesting stuff like calendars, moon calendars, ...

When Is The Next Leap Year - Perpetual Calendar

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 29th. This creates the unique situation  ...

Leap Years - Calendar-12.com

www.calendar-12.com/leap_year

Find out when is the next leap year with our calculator.

Answer
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.
More Info

Next Leap Day: February 29, 2020 - Timeanddate.com

www.timeanddate.com

Feb 29, 2016 ... A Leap Day, February 29, is added to the calendar during leap years. This extra day makes the year 366 days long – not 365 days, like a ...

When is Leap Year? When is the next Leap Day? | The Old Farmers ...

www.almanac.com

A “Leap” Day is an extra day on February 29 which is added nearly every 4 years to today's Gregorian calendar. A “leapling” is a person born in a leap year.

Leap Year 2016 February 29th - why is there an extra day every four ...

www.telegraph.co.uk

Mar 1, 2016 ... Leap Year 2016: Why does February have 29 days every four years? ... The Roman calendar used to have 355 days with an extra 22-day ...