How Does Secret of the Prime Meridian Work?

The Secret of the Prime Meridian is like having a special line on Earth that helps everyone know where they are.

Imagine you and your friends are playing hide-and-seek all over the world. To find each other, you need a starting point, kind of like a special line called the Prime Meridian. It runs from the North Pole to the South Pole, right through Greenwich in London, like a big invisible stripe on Earth.

Think of Earth as a giant clock face. The Prime Meridian is like the 12 o'clock line, when you're standing on that line, it's like saying, "I'm starting here!" Then, people around the world can count how many hours away they are from that line to tell time and location.

If you move east of the Prime Meridian, you’re ahead in time, just like moving forward on a clock. If you move west, you're behind, like going back in time!

This secret line helps airplanes, maps, and even your GPS know exactly where you are. It's like having a super helpful friend who always knows where everyone is!