The system default DATE format is YYYY-MM-DD (whether DateForm is ANSIDATE or INTEGERDATE).
Your system administrator can change the default format that applies to DATE data types when the DATEFORM is set to INTEGERDATE. Changing the default DATE format involves changing the value of the DATE element in a custom Specification for Data Formatting (SDF) file, and using the tdlocaledef utility to convert the information into an internal form usable by Vantage.
Setting or changing the default DATE format in the SDF has the same consequences as those for DATEFORM, except that the default DATE format in the SDF does not change the export data type of DATE values.
To view the value of the system default DATE format, use HELP SESSION.