Introduction - If you have any usage issues, please Google them yourself
Time to 60 minutes for one cycle of electronic clock format: XX XX XX, from left to right are: hours, minutes and seconds. Complete show has been increase from 01 seconds 1-59, and then revert to 00 minutes plus 1, by 00-01, 1-59 have been added, and then to resume 00 at plus 1, by 00-01, 1-23 has been added.