Why Do Clocks Disagree Around the World?

What Crafty Clover says in this video

Intro

Hey there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do clocks disagree around the world?

The Big Idea

If it is noon where you are, it can be the middle of the night somewhere else! Earth is round and spinning. When it is noon on your side, it is night on the far side. So clocks in different places show different times, and that is on purpose. So different clocks around the world can all be right at the same moment.

Earth Spins

Step one: Earth spins. Earth turns all the time, from west to east. One full turn takes about 24 hours.

Sun Hits One Side

Step two: the sun hits one side. Only one side of Earth faces the sun at a time. The lit side has day, and the far side has night.

Places Pick a Zone

Step three: places pick a zone. We divide Earth into time zones, so each region can share one clock time. That way, everyone in a zone uses the same time.

A Closer Look

Let's take a closer look at clocks around the world! First, Earth spins. Second, the sun hits one side. Third, places pick a zone. And fourth, clocks match the local sun, so your clock shows the time that fits your patch of sunlight.

Quick Facts

Quick facts! A video call can be breakfast for you and bedtime for a friend. The world has 24 main time zones, about one for each hour. Some countries have many time zones, and some use just one. Travelers change their watches when they cross into a new zone.

Think Like a Scientist

Now, think like a scientist! Ask a grown-up to help you find a far-away city on a map. Look up what time it is in that city, such as Tokyo, right now. Compare it to your own time. Can you explain why the times are different?

Outro

Clocks disagree because Earth spins, and they are all right for their own patch of sun! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!