Clocks know the time because they get instructions from something else. Like how your phone knows when to show you a message, it gets a signal from the internet. Clocks can also use signals from radio stations or satellites, which tell them exactly what time it is.
Examples
- A kitchen clock updates itself every night when it hears a radio signal.
- Your phone knows the time because it gets a message from GPS satellites.
- The school bell rings on time thanks to a clock that listens to a special radio signal.
Ask a question
See also
- How Do Clocks Know What Time It Is?
- How Do Clocks Know the Time Without Being Connected to Anything?
- How Do Clock Towers Work?
- How Does a Clock Know When to Ring?
- How Does a Watch Keep Time Accurately?
Discussion
Recent activity
Nothing here yet.