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 FileMaker Pro Custom Functions

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WeekStart ( weekOfYear ; year )

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  Average rating: 4.8  (28 votes)
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Michael Horak, *COMMENT Visual Realisation

Returns the date of Sunday in the specified week.

Sample Input:
WeekStart ( 54 ; 2000 )

WeekStart ( 1 ; 2001 )
Sample Output:
Dec 31, 2000

Dec 31, 2000

 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed


Returns the starting date of the given week number in the given year. Week numbers are assumed to follow the same rules as specified for FileMaker's WeekOfYear() function.

This function is NOT recursive.

Note: these functions are not guaranteed or supported by Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it


Elegant, and easily modified for fiscal!

Karen, ny
May 13, 2012 7:02am

Nice one, Michael. Thank you...

I changed the '-6' to '-5' so as to show the Monday of the week. I know this is not strictly correct, but it's what my client wanted!!!

John Buckingham, Maidstone, Kent, UK
August 31, 2012 9:38am

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