What are time signals?

A time signal is like a special message that tells everyone exactly what time it is, every single day.

Imagine you have a clock in your room, and every morning at 7:00 AM, it rings to wake you up. That’s pretty simple, right? Now imagine there's a giant clock somewhere far away, so big it can be seen from all around the world, and every day, at exactly 12:00 noon, it sends out a special signal that helps other clocks know what time it is.

This is what a time signal does. It’s like a message from this giant clock to all the smaller ones, telling them when to tick and tock so they match up with the big one.

• Your phone or watch might use a time signal to know the correct time.
• This helps people around the world stay in sync, like how your whole class can start lunch at the same time, even if you're all in different rooms.

So, a time signal is just a really smart way for clocks everywhere to agree on what time it is!