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Because it takes approximately 365.25 days for the Earth to orbit the sun, an extra day is added every four years to compensate for this extra quarter of a day.

When a year is divisible by 100, it is only a leap year when it is also divisible by 400. For example, 1600 was a leap year, but 1700, 1800, and 1900 were not. 2000 was a leap year, but 2100, 2200, and 2300 will not be leap years.

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Q: Why do leap years occur at four year interval?
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Related questions

How many times do leaps years occur?

Leap years occur every four years.


How many yearss does a leap year occur?

A leap year occurs every four years.


How many seconds are in twenty four years?

757382400 seconds approx. The exact number depends on how many leap years there were in the interval and on whether or not there were any leap seconds.


Is 1943 a leap year?

No, 1943 is not a leap year. Leap years occur every four years, but the year 1943 is not evenly divisible by 4.


Does leap occur every 4 years?

A leap yar occurs every four years. The exception is years ending in -00, where only the ones with the first two figures divisible by four is a leap year. E.g. 2000 is, but 1900 is not a leap year.


How many years dose is LEap year occur every years?

A leap year occurs every four years. The day when a leap year hasoccurred is on February 29.


How many leap years from 1999 to 2009?

There were two leap years from 1999 to 2009: 2000 and 2004. Leap years occur every four years to account for the extra 0.25 days in a solar year.


How many leap years occur in 50 years?

As least 11 but no more than 13 leap years occur in 50 years.


How ofter do leap year occur?

a leap year occurs every four years as the earth spins 365 1/4 times so the quarters make a full one every four years giving us a leap year /an extra day


Does leap skip every 3 years?

No, leap days occur every four years and the only leap years which are "cancelled" are the centurial years (1700, 1800, 1900, 2100, 2200, 2300, 2500, 2600 2700, 2900, 3000 etc.)


How many days until the next leap year?

Leap years are usually every four years. They will occur every four years until the year 2096, then the next one after that will be eight years later. So since 2012 is a leap year, the next one will be 2016, followed by 2020, 2024, and so on.


Leap years ocour every how many years?

Leap years occur every 4 years.