You have a friend Manila, the Philippines. She wants you to call her on Wednesday at 9 am Manila time. You live in Chicago. What day and time will it be Chicago when you call your friend?
Tip: Manila is 14 hours ahead of Chicago.

Call her 5pm on Tuesday

Explanation:

The problem here is that Manila and Chicago are in different time zones.

To solve this, we must convert Manila time to Chicago time.

  Manila is 14hrs ahead of Chicago;

Manila is the capital city of the Philippines located in Asia. Chicago is a city in the United States of America.

As with regions with different longitudes on the earth surface, there would be differences between their time zones. This is because the earth is a spherical body. Some places are ahead whereas, some others are behind.

   Manila is 14hrs ahead of Chicago

To call her at 9am Manila time from Chicago;

 Simply Subtract 9 hrs from 14hrs which gives 5pm the previous day.

  Call her 5pm on Tuesday

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