You don't really think about it much, but when you get on the plane to go away for your holidays you probably have to change the time on your watch and phone. Why do we have time zones? How did they come about? Watch this clip and create a timeline of the events leading up to the introduction of time zones.
Cras justo odio, dapibus ac facilisis in, egestas eget quam. Curabitur blandit tempus porttitor. Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor.
