PURPOSE: To display the elapse of time occupied in each batter's box of a golf practicing site.

CONSTITUTION: An occupied or non-occupied state of each batter's box is input to a microcomputer 12 as '1' or '0' from a 'occupied' or 'non-occupied' information generation circuit 14 and is stored at a RAM 12b. The microcomputer 12 counts an occupied state continuation time by using the RAM 12b according to interruption at each fixed amount of time from a clock IC 30. An elapsed time for each batter's box is displayed in bar graph by an LED display board 16. Since the elapse time of each batter's box is displayed graphically, a waiting time can be predicted.