Web Results

en.wikipedia.org/wiki/Leap_year

A leap year is a calendar year containing one additional day added to keep the calendar year ... In the Baha'i Calendar, a leap day is added when needed to ensure that the following year begins on the vernal equinox. The name "leap ... The Gregorian reform modified the Julian calendar's scheme of leap years as follows:.

www.timeanddate.com/date/leapyear.html

Feb 29, 2016 ... We add a leap day – February 29 – nearly every four years. ... Leap years are needed to keep our modern day Gregorian calendar in alignment ...

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...

www.infoplease.com/leap-year-101-next-when-list-days-calendar-years-calculation-last-rules

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

www.infoplease.com/leap-year-explained

The Gregorian calendar, which now serves as the standard calendar for civil use throughout the world, has both common years and leap years. A common year ...

www.telegraph.co.uk/news/uknews/12177017/Leap-Year-2016-Why-does-February-have-29-days-every-four-years.html

Mar 1, 2016 ... When is it, why does it happen and everything else you need to know about the leap year in 2016.

news.nationalgeographic.com/2016/02/160226-leap-year-science-time-world-cultures-february

Feb 26, 2016 ... Here's how a leap day—which occurs Februrary 29—helps keep our ... is a leap day, the calendar oddity that occurs (almost) every four years.

www.wwu.edu/skywise/leapyear.html

There is a leap year every year whose number is perfectly divisible by four - except for years which are both divisible by 100 and not divisible by 400.

www.theguardian.com/science/2011/feb/28/leap-year-alex-bellos

Feb 28, 2011 ... This is confusing, so a British mathematician has suggested switching to a better rule, but before I get to that, this is why leap years are needed ...