a portable electronic device for displaying daily schedule information of a particular event and selectively displaying past and future schedule information which includes a display controlled by a processor having an internal programmable memory . the schedule information includes the location of the event , the start time , and the corresponding time zone . the memory contains data representing the event &# 39 ; s schedule and a program for controlling the processor . the display provides actual time and date information and schedule information corresponding to the displayed calendar day . by manipulating a plurality of externally mounted push - button switches , the user commands the processor to update the display with schedule information corresponding to past and future days . a programmable alarm provides an audible reminder when a scheduled event begins .