Understanding Time Zone Calculations

This video tutorial explains the basics of time zone calculations, focusing on the Prime Meridian as a reference point. It covers how Earth’s rotation affects time zones, the significance of the Prime Meridian, and how time differs as you move east or west. The tutorial includes numerical examples to illustrate these concepts and concludes with a summary of key points.

Why is understanding time zone calculations important?

• To avoid jet lag

• To calculate travel expenses

• To manage international meetings

• To predict weather changes

What is the Prime Meridian also known as?

• Equator

• International Date Line

• Greenwich Meridian

• Tropic of Cancer

How many degrees does Earth rotate in one hour?

• 25 degrees

• 20 degrees

• 15 degrees

• 10 degrees

What is the range of degrees for the same time zone around the Prime Meridian?

• 10 degrees east and west

• 7.5 degrees east and west

• 5 to 10 degrees

• 0 to 5 degrees

What does 'bonus time' refer to in time zone calculations?

• Extra time gained when moving east

• Extra time gained when moving west

• Time saved during daylight saving

• Time lost when crossing the International Date Line

What does the mnemonic 'EGA' stand for?

• Evening Gains Ahead

• Every Good Afternoon

• East Go Ahead

• East Gain and Add

If a person moves from 90 degrees west to 30 degrees west, how many hours do they gain?

• 5 hours

• 2 hours

• 3 hours

• 4 hours

What is the time difference between 90 degrees west and 150 degrees west?

• 2 hours

• 5 hours

• 3 hours

• 4 hours

What happens to time when moving westward?

• Time is gained

• Time is doubled

• Time is lost

• Time remains the same

What is the role of the International Date Line in time zone calculations?

• It marks the start of a new day

• It divides the eastern and western hemispheres

• It is used to calculate daylight saving time

• It is the same as the Prime Meridian