Brian Dunning's FileMaker Custom Functions

IncDateOneMonth ( StartDate ; LastDate )

Increments a Date field one month based on a starting date

  Average rating: 4.4 (29 votes) Log in to vote

Don Wieland   Don Wieland
DW Data Concepts

Share on Facebook Share on Twitter

  Sample input:
IndDateOneMonth ( 1/31/2007 , 1/31/2007 )

IndDateOneMonth ( 1/30/2007 , 2/28/2007 )

IndDateOneMonth ( 1/31/2007 , 3/31/2007 )
  Sample output:

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

Increments month of a date field except when the days of the next month are less than the DAY of the start date in which the last day is returned.



Log in to post comments.


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

Support this website.

This library has been a free commmunity resource for FileMaker users and developers for 15 years. It receives no funding and has no advertisements. If it has helped you out, I'd really appreciate it if you could contribute whatever you think it's worth:

Under construction. Email me your wish list for improvements.