To convert from the 12 hour clock to the 24 hour clock is easy - you just need to add 12 to the hours in the day after midday.

After noon, instead of starting over with 1 ... For those still learning the 24-clock system, a simple way to translate afternoon and evening hours into civilian time is to subtract 12.

To convert from the 12 hour clock to the 24 hour clock is easy - you just need to add 12 to the hours in the day after midday.