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 FileMaker Pro Custom Functions

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Weekdays ( startDate ; endDate )

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  Average rating: 4.3  (29 votes)
  Discuss this Custom Function

Reinder Wolting, ABECON

The number of weekdays between two dates

Sample Input:
Weekdays ( dec 29 2004 ; jan 10 2005 )
Sample Output:

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


Just like the function Barbecue posted. But not recursive, so a bit faster for longer periods of time.

The dates in the example above are specified this way to avoid confusion between european and american date notation. Use normal date fields in your caculations!

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 7 comments

I haven't tested this, but I don't see the need. How can it possibly work without the dayname function?

If you have 4 days between two dates for example, if the start date is Monday then you have 4 weekdays; if it's friday, you have 2. So how could you get this right without using the dayname function?

databaser, CA
December 03, 2011 11:58am

I had a hard time getting the recursive functions to work. This one saved me! Thanks!

brad, El Segundo
January 21, 2014 11:25am

Really appreciate this feedback! I was not able finalize my formula until I saw this one. Thank you!

Ariel, 95134
February 03, 2014 6:12pm

Doesn't always calculate correctly.
Take 1st April 2015 to 30th April 2015.
It should be 22 days; but it calculates 21.

Philip McGeehan, Poole, UK
June 18, 2015 6:24am

Has an error, Put in 10/10/2014 and 10/22/2014 and it returns 8, but should return 9 days.

Peter, Norristown, PA
August 25, 2015 7:09pm

Make a comment about this Custom Function (please try to keep it brief & to the point). Anyone can post:

Your Name:
characters left. If you paste in more than 1500 characters, it will be truncated. Discuss the function - advertisements and other useless posts will be deleted.
Answer 9 + 4 =
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