FaqKids.com

="answers
Q:
What years are leap years?
A:

It takes the earth about 365.2422 days to go around the sun, but a normal calendar year is only 365 days. The extra fraction of a day adds up: circling the sun four times takes 1460.9688 days, but four calendar years would only be 1460 days. That .9688 is almost a whole day, so every four years we add an extra day to our calendar, February 29. We call that year leap year. To make things easier, leap years are always divisible by four: 2004 and 2008 will both be leap years.


For hundreds of years, people used a calendar called the Julian calendar that followed this rule, adding a leap year every four years. However, because .9688 isn’t exactly a whole day, the Julian calendar slowly began to disagree with the real seasons. In 1582, Pope Gregory fixed this problem by ordering everyone to use a new set of rules. These rules are named the Gregorian calendar, after him. They work like this:


The Gregorian Calendar
Rule Examples
Every fourth year is a leap year. 2008, 2012, and 2016 are leap years.
However, every hundredth year is not a leap year. 1900 and 2100 are not leap years.
Every four hundred years, there’s a leap year after all. 2000 and 2400 are leap years.


People in English-speaking countries didn’t start using the Gregorian calendar until 1752. Some countries, such as Iran, still use other systems.

related questions

Share This Site

Word of the Day

mickle:
mickle: great; large; much.

Born on this day

September 23, 2017

1898 - Walter Pidgeon
1905 - Tiny Bradshaw
1926 - John Coltrane
1920 - Mickey Rooney
1928 - Frank Foster
1930 - Ray Charles
1943 - Julio Iglesias
1949 - Bruce Springsteen
1954 - Cherie Booth QC
www.Bridal-Shower-Games.com |Baby Shower Games | www.TwitterBackgrounds.org