A time zone management system and method for a date-book like application. A user can associate a time zone with an event or appointment, especially on a palmtop computer. The event can be associated with the time zone by selecting the time zone as an attribute from a details menu, or other suitable user interface mechanism or other mechanism. The user can select a display time zone, and all events to be displayed are translated to the display time zone to be displayed on the palmtop computer.