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There are 2,572 functions in this library.

leapyear ( date )

Calculates if a certain year is a leapyear

Average rating: 4.4 (30 votes) Log in to vote

Joost Miltenburg
newbase
http://www.newbase.nl

Sample input:

Leapyear (1/1/1900) ;
Leapyear (1/1/2000) ;
Leapyear (1/1/2004)

Sample output:

0 ; 1 ; 1

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

// leapyear : dividable by 4 or 400, but not 100
Case ( 
Mod ( Year ( datum ) ; 4 )  = 0 ; 
Case (
Mod ( Year ( datum ) ; 400 ) = 0 ; 1 ;
Mod ( Year ( datum ) ; 100 ) = 0 ; 0 ;
1 // normal leapyear
)
;
0
)

A leapyear is a year that occurs once every 4 years and 400 years. The year 1900 , 2100 etc won't be a leapyear. 2000 was.

Comments

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