How to read the time on a 24 hour watch
The original watch comes from sundials, which don’t allow for separate 12-hour a.m. and p.m. designations. The 24-hour watch has an hour marker for each corresponding hour in the day.
Reading the time on a 24-hour watch is the same as reading on any non-digital timepiece. However, a 24-hour watch has three ticks on the hour hand between each hour. The minute hand is the same as any other regular watch.
Pilots, scientists and members of the military also use these watches. “military time” doesn’t have a.m. or p.m. Another bonus of a 24-hour watch is its ability to mark midnight at the very top
This example shows the time 8:10 PM on a regular 12-hour watch. Or 20.10 on a digital watch.