A century leap year is a leap year in the Gregorian calendar that is evenly divisible by 400. Like all leap years, it has an extra day in February for...
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A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar...
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3rd millennium (redirect from 22nd century)
second century leap year in the 3rd millennium, in accordance with the Gregorian calendar. The Revised Julian Calendar, however, observes a leap year in 2900...
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February 29 (redirect from Leap Year Day)
February 29 is a leap day (or "leap year day")—an intercalary date added periodically to create leap years in the Julian and Gregorian calendars. It is...
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Gregorian Calendar, where century years would not be leap years if they are not divisible by 400. Therefore, 1700 is the first century year in the Gregorian Calendar...
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1200 (redirect from 1200 (year))
a leap year starting on Saturday of the Julian calendar, the 1200th year of the Common Era (CE) and Anno Domini (AD) designations, the 200th year of...
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10000 may also refer to: 10,000 AD, the last year in the 10th millennium and 100th century, a century leap year starting on Saturday Myriad Ten Thousand,...
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1600 (redirect from 1600 (year))
was a century leap year starting on Saturday of the Gregorian calendar and a leap year starting on Tuesday of the Julian calendar, the 1600th year of the...
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A leap year starting on Friday is any year with 366 days (i.e. it includes 29 February) that begins on Friday 1 January and ends on Saturday 31 December...
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drifted by another three days since 1582 (in 1700, 1800 and 1900, see Century leap year) from astronomical reality, so thirteen days needed to be elided....
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A leap year starting on Tuesday is any year with 366 days (i.e. it includes 29 February) that begins on Tuesday, 1 January, and ends on Wednesday, 31...
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year in the 4th millennium BC A.D. 4000, the last year of the 4th millennium CE, a century leap year starting on Saturday 4000s AD, a decade, century...
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A leap year starting on Wednesday is any year with 366 days (i.e. it includes 29 February) that begins on Wednesday 1 January and ends on Thursday 31...
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The Great Leap Forward was an industrialization campaign within China from 1958 to 1962, led by the Chinese Communist Party (CCP). Party Chairman Mao Zedong...
126 KB (15,070 words) - 16:51, 6 June 2025
A leap second is a one-second adjustment that is occasionally applied to Coordinated Universal Time (UTC), to accommodate the difference between precise...
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decided to introduce leap seconds in March and September. In the 25th century, four leap seconds are projected to be required every year, so the current quarterly...
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A leap year starting on Thursday is any year with 366 days (i.e. it includes 29 February) that begins on Thursday 1 January, and ends on Friday 31 December...
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(number) and the 6000s The last year of the 6th millennium, a century leap year starting on Saturday The Hebrew Year 6000, in the Gregorian 3rd millennium...
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Julian calendar (redirect from Year of confusion)
widespread in Europe in the eighth century. The Julian calendar has two types of years: a normal year of 365 days and a leap year of 366 days. They follow a simple...
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A common year starting on Wednesday is any non-leap year (a year with 365 days) that begins on Wednesday, January 1, and ends on Wednesday, December 31...
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A leap year starting on Sunday is any year with 366 days (i.e. it includes 29 February) that begins on Sunday, 1 January, and ends on Monday, 31 December...
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A leap year starting on Saturday is any year with 366 days (i.e. it includes 29 February) that begins on Saturday, 1 January, and ends on Sunday, 31 December...
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A leap year starting on Monday is any year with 366 days (i.e. it includes 29 February) that begins on Monday, 1 January, and ends on Tuesday, 31 December...
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Gregorian calendar (redirect from Gregorian year)
the average solar year is exactly 365.25 days long, an overestimate of a little under one day per century, and thus has a leap year every four years without...
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centennial year is evenly divisible to 400 years. Then the year will automatically be a "Century Leap Year"), the Julian calendar fell one day further behind...
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tropical year by using a system of leap years. The term 'year' is also used to indicate other periods of roughly similar duration, such as the lunar year (a...
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1624 (redirect from 1624 (year))
(MDCXXIV) was a leap year starting on Monday of the Gregorian calendar and a leap year starting on Thursday of the Julian calendar, the 1624th year of the Common...
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centennial year is evenly divisible to 400 years. Then the year will automatically be a "Century Leap Year"), the Julian calendar fell one day further behind...
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ISO week date (redirect from ISO year)
specifies a week year atop the Gregorian calendar by defining a notation for ordinal weeks of the year. The Gregorian leap cycle, which has 97 leap days spread...
28 KB (3,384 words) - 11:06, 23 May 2025