Date manipulation system

摘要

This invention provides a temporary solution to the problems that certain computer systems are expected to experience in storing or using any dates beyond 31st December 1999. In particular it provides a system and method for implementing date manipulation, in a computer system for executing application programs (11) or processing data containing date entries where the year is represented by a two digit field. Date manipulation comprises storing date entries within date fields in modified form, subsequently modifying (14) any dates inputted (15) to the system and restoring (13) any stored dates to their pre-modified form when outputting (16) them from the system. <IMAGE>