time zone

For anyone who’s ever traveled abroad, jet lag can be your worst enemy. After a long flight, the clock on your dresser will often say something completely different than the clock in your head.

Turns out, there are 24 time zones across the globe, spanning different regions and cultures. It’s fascinating to think that when New Yorkers are getting ready to start their day, people in Tokyo are 14 hours ahead and are preparing for bed.

Here are 11 fascinating things you probably didn’t realize about time zones.

The Transcontinental Railroad sparked the creation of time zones in the US.