Why Do We Need ‘Time Zones’?

Imagine you're playing with your friends, and it's lunchtime for you, but for them, it's still breakfast. That’s like having time zones! When the sun moves around Earth, different parts of the world see day and night at different times. If everyone used just one time, people would get confused about when to eat or sleep. So we divided the world into time zones, so that every place has a time that matches how much sunlight they get.