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 FileMaker Pro Custom Functions

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DatesToMonths ( Date1 ; Date2 )

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  Average rating: 4.5  (29 votes)
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Timothy Brown, Antidote Solutions

This show the number of months between 2 dates

Sample Input:
Sample Output:

 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


This will calculate the number of months between 2 dates. It will calculate negative months if the Date1 is less than Date2.

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


I will use this to replace some of my late fees calculations.

Jean-Pierre, Montreal
January 05, 2013 1:45pm

Wouldn't 7/1/2006 - 1/1/2006 be SIX months? Just saying'.

Jonathan Fletcher, Louisville, KY
August 20, 2016 7:51pm

Unless it was intended to count all included months. Should be more clear about what this is for.

Jonathan Fletcher, Louisville, KY
August 20, 2016 7:53pm

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