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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.

Sources:

See Also:
Leap Year Calculator

en.wikipedia.org/wiki/Leap_year

For example, in the Gregorian calendar, each **leap year** has 366 days ... on the
Sunday after the full moon {**calculated** according to a lunar calendar} that falls on
...

support.microsoft.com/en-us/kb/214019

Describes how to determine whether the year in a date that is used in an Excel
document is a

www.wikihow.com/Calculate-Leap-Years

How to

www.timeanddate.com/date/leapyear.html

A

www.mathsisfun.com/leap-years.html

stackoverflow.com/questions/725098/leap-year-calculation

In order to find

www.dataip.co.uk/Reference/LeapYear.php

www.onlineconversion.com/leapyear.htm

Easily determine if a year is a

www.perlmonks.org/?node_id=32583

Sep 15, 2000

Popular Q&A

Q:
How are the leap years calculated ?

A:
The modern civil/business calendar inserts February 29th in a leap year . Every year divisible by '4' is a leap year , except for the last year of each Century . ...
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Source:
wiki.answers.com

Q:
How is a leap year calculated ?

A:
Rule 1: Any year evenly divisible by 400 IS a leap year . Rule 2: Any year evenly divisible by 100 is NOT a leap year , unless it conflicts with Rule 1. Rule 3: A...
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Source:
answers.yahoo.com

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leap years calculation ?

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Ok try this, i took out the month thing completly and cleaned up 1:2:3:4:5:6:7:8:9:10:11:12:13:14:15:16:17:18:19:20:21:22:23:24:25:26:27:28:29:30:31:32:33:34:3...
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Leap Year Calculation Question?

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They are independent events is all I can tell you for I have absolutely 0.. (negative) experience in probability. Here's a loser's attempt to solve a probabilit...
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Source:
answers.yahoo.com

Q:
Crystal Report Leap Year Calculation Not working.

A:
How about this. It should work regardless of leapyear. Find today last year then subtract 1 day. DateVar YesterdayLYr : CDate(DateAdd(yyyy' -1, {DataDateField}...
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Source:
www.experts-exchange.com