Software Venture Consulting

FileMaker Pro downloads & Resources
FileMaker Custom Functions
FileMaker Web Viewer Examples
FileMaker Pro & Lasso Consulting
FileMaker Books
FileMaker Articles
FileMaker Error Reference

Free Web Tools
Free FileMaker Tools

Personal Pages

Shopping Cart
Shopping Cart


Free Newsletter


Privacy Policy

FileMaker is a registered trademark of FileMaker, Inc. in the U.S. and other countries.


 FileMaker Pro Custom Functions

List  |  Show Random  |  Upload  |  Add This to Your Site

YMDFormat( theDate )

Rate this function:  

  Average rating: 4.4  (27 votes)
  Discuss this Custom Function

David Goetzka, shinynew

Reformats a given date into text as YYYY-MM-DD

Sample Input:
YMDFormat( 1/1/1986 )
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 is my first shot at a custom function, so don't laugh. ;-) I basically needed to reformat a date in the format of YYYY-MM-DD to send as a text string.

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


Instead of Case statements I'd prefer:

Year(theDate) & "-" &
Right("00" & Month(theDate); 2) & "-" &
Right("00" & Day(theDate); 2)

Peter Bouma, Amsterdam, Netherlands
January 27, 2010 4:34am

Nice clarification there. Started with a good idea made better.

John Pollard, sac, ca
June 09, 2016 1:57am

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 5 + 1 =
Search for Custom Functions:

Custom Functions Widget
Download the Custom Function Dashboard Widget for OS X
Keep all the latest Custom Functions right at your fingertips!

Newest Custom Functions:

1. ExcludeValues(MyList ; Out)
  (Wed, Mar 21, 7:23am)
2. PreviousMonthEndDate ( myDate )
  (Wed, Mar 07, 3:35am)
3. PreviousMonthName (myDate)
  (Wed, Mar 07, 3:33am)
4. FmTableFields ( tableName ; fieldsInclude ; fieldsExclude ; classExclude ; typeExclude ; prefixExclude )
  (Fri, Mar 02, 6:32am)
5. sql.getTable ( fullyQualifiedFieldObject )
  (Thu, Feb 22, 8:36am)
6. sql.getField ( fullyQualifiedFieldObject )
  (Thu, Feb 22, 8:34am)
7. FilterOut ( ListA ; ListB )
  (Wed, Feb 21, 6:11pm)
8. Char0 ( )
  (Sun, Feb 18, 2:35am)

RSS Feed of Custom Functions