A 12-hour clock is like having two teams take turns being on duty for a whole day and night.
Imagine you have a toy train that goes around a track. It has two conductors: one named AM, and the other PM. From morning until noon, the AM conductor is in charge, that’s from when you wake up to when you eat lunch. Then, at 12 o’clock, the PM conductor takes over for the rest of the day, like after school or before bedtime.
How It Works
- In the morning, it starts with 12:00 AM (that's "12 o'clock in the morning").
- When it gets to 12:00 PM, that means it’s "12 o’clock in the afternoon", and the conductors switch places again.
So, a 12-hour clock only counts up to 12, then starts over again. It uses AM and PM to tell you whether it's morning or afternoon, just like your toy train switching conductors!
Examples
- A child uses a clock with numbers from 1 to 12 to know when it's morning or night.
- Someone sees the number '3' on the clock and knows it's 3 o'clock in the afternoon.
- A teacher explains that the clock goes from 12 to 12 twice a day.
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See also
- How Does A Brief History Of (Keeping) Time Work?
- How Do Computers Actually Know What Time It Is?
- How do clocks work together like a team?
- What are mechanical clocks?
- What are escapement mechanisms?