[GENERAL] Is it possible for PostgreSQL to support mmddyyyy date format?

I'm currently porting an Informix based application to PostgreSQL 8.3. All of the dates processed by the application are in the mmdd format. According to the date input table at the link below, the mmdd format is not listed. The mmdd format is supported, but I'd have to modify a LOT

Re: [GENERAL] Is it possible for PostgreSQL to support mmddyyyy date format?

This is from the link 1/8/1999 January 8 in MDY mode; August 1 in DMY mode 1/18/1999 January 18 in MDY mode; rejected in other modes 01/02/03 January 2, 2003 in MDY mode; February 1, 2003 in DMY mode; February 3, 2001 in YMD