There are 24 time zones around the world. The time between Beijing and Chicago is 13 hours. Beijing is 13 hours ahead of us. For example, when we go to bed 8:00 at night, the students in Beijing start their school at 9:00 next day in the morning.
Here are couple questions:
- When I fly to Beijing, do I lose a day or gain a day?
- How about when I fly back to Chicago, do I gain or lose a day?
Check the TIMEBIE out. It gives you exact time in both cities. http://timebie.com/timezone/beijingchicago.php