Y2K Compliancy Statement:

Address Book, is year 2000 ready. Address Book makes use of the built-in Macintosh date routines, which function correctly well pass the year 3000.  The date is used in Address book only in two cases. One of these is to create a log of calls. This log does not record the year in the current or pass version. The other use of date is to record the date-time a record is modified.