NextFirstFriday ( theDate )
Finds the next first Friday
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Function definition: (Copy & paste into FileMaker's Edit Custom Function window)
Enter a date and the function finds the following month's first Friday.
Sep 27, 2013
Let ( [
Next1stDate = Date ( Month ( theDate ) + 1 ; 1 ; Year ( theDate ) ) ;
Dow = DayOfWeek ( Next1stDate )
Next1stDate + 6 - Mod ( Dow ; 7 )
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