I have made my own clock system and it would only work if the clock goes round once in 86400 seconds - in one day instead of twice. So what do I have to do with my clock to make that work? btw. I'm not talking about a digital clock-
You need to change the gear ratio between the minute hand and hour hand, from 12:1 to 24:1.
Mark the dial with 24 sections instead of 12 and all will be well.
Check the back of it to see if there is a 12 hour setting and 24 hour setting. You might be able to just flip a switch.
