In 60 seconds it becomes zero and adds 1 to the previous byte. When the value reaches 60, the byte is zero and the byte value of the time is added to 1. 24, the byte at the time becomes zero. Next, the timing processing and the output are performed, and if the main content is a particular theme, the step flag is detected, and if it is stored in the ROM, it is compared with the current time from the second minute