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 FileMaker Pro Custom Functions

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WorkingDays ( DateStart ; DateEnd ; HolidayList )

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  Average rating: 4.2  (35 votes)
  Discuss this Custom Function

Daniele Raybaudi, ACI

returns the number of working days between the two dates

Sample Input:
WorkingDays ( "7/7/2010" ; "7/7/2010" ; HolidayList )
WorkingDays ( "7/3/2010" ; "7/4/2010" ; HolidayList )
Sample Output:

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


returns the number of working days between the two dates.
( No weekend days nor any day of the HolidayList )

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


5 most recent comments | Show all 20 comments

"HolidayList" can be:
a text, a text field, a calculation field with text result, a variable, whatever you wish to use but containing a list of dates.
Practically it is better to create an holidays table, each record representing an holiday, then a value list getting its values from that table.

Daniele Raybaudi, Rome
March 03, 2014 10:40am

I used this function and it worked perfectly! Thanks a bunch!

For those who it is not working for, be sure you are passing the HolidayList parameter as a list. I have this function called in a calculation field and it looks like:

WorkingDays( GetAsDate(Date Initial) ; GetAsDate(Date Final); List(Holidays::Date)

Bob Barker, ThePriceIsRight
October 06, 2016 8:39am

How is this a recursive function? Is it because it calls itself at the end with: WorkingDays ( DateStart + 1 ; DateEnd ; HolidayList )??

Bob Barker, ThePriceIsRight
October 06, 2016 8:50am

Hi all,

Not sure how to make the holiday list be 'seen' by the function...

Any ideas?


Dom Moir, London
October 09, 2016 3:03am

The function seems to have a delay as you scroll through records and it also seems to not work correctly each time (or is it my FileMaker?). In a field I will get a long string of numbers, but if I click in the field, it will suddenly change and display the number of days correctly.

Fred, CA
October 11, 2017 6:42pm

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