How Does 12 vs 24 Hour Clock - Functional Skills Work?

The 12-hour clock and 24-hour clock are two ways to tell time, like having two different languages for talking about when it is.

Imagine you have a toy train that goes around a track. The 12-hour clock is like the train that stops at 12 stations, from 1 to 12, and then starts again. It says "1:00 AM" in the morning and "1:00 PM" in the afternoon.

The 24-hour clock is like a bigger train with 24 stations, it goes all the way around the track without stopping. So, it just says "1:00" in the morning and "13:00" in the afternoon, no need for AM or PM!

How You Use Both

  • With 12-hour clock, you say “It’s 9 o’clock in the morning” or “It’s 9 o’clock at night.”
  • With 24-hour clock, you just say “It’s 9:00” or “It’s 21:00.”

Both are useful, like having two different maps to find your way around a park. One is simpler for little kids, and the other helps grown-ups tell time more clearly when they’re busy!

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Examples

  1. A child uses a 12-hour clock to know when it's time for lunch and bedtime.
  2. An adult reads the time on a digital watch as '14:30' and knows that means 2:30 PM.
  3. A student converts 9:00 AM into 09:00 in 24-hour format before writing down their schedule.

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