Smartphones use a special tool called GPS, which helps them know exactly where you are. When you travel to a new city, your phone updates the time based on where it thinks you are. It’s like having a tiny clock inside your phone that knows when it's morning or night in every part of the world.
Examples
- Your phone changes the time automatically when you go on a plane trip.
- When you arrive at your friend’s house, their phone shows the same time as yours.
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See also
- Why Do Smartphones Automatically Adjust to Different Time Zones?
- How Can a Single Phone Know Where You Are?
- How Does Your Phone Know You're Running?
- How Can a Tiny Chip Hold All Your Data?
- How Can a Phone Know Where You Are?