Time Zones

What is the formula to convert longitude into time?

• Time = Longitude × 4 minutes

• Time = Longitude ÷ 4 minutes

• Time = Longitude × 15 degrees

• Time = Longitude ÷ 15 degrees

If a location is at 45°E longitude, what is its approximate time difference from GMT (Greenwich Mean Time)?

• +3 hours

• +1.5 hours

• +2 hours

• +6 hours

How many time zones are there in the world?

• 12

• 24

• 36

• 48

What is the longitude of the Prime Meridian?

• 0°

• 90°E

• 180°

• 45°W

If two cities are 30° longitude apart, how many hours are they apart in time?

• 1 hour

• 2 hours

• 4 hours

• 6 hours

Which of the following coordinates would likely be in the same time zone?

• 35°N, 85°W and 45°N, 85°W

• 35°N, 120°E and 45°N, 85°W

• 35°N, 0° and 45°N, 90°E

• 35°N, 120°E and 45°N, 130°E

What is the time difference between two places if their longitudes are 75°E and 45°W?

• 8 hours ahead

• 8 hours behind

• 5 hours ahead

• 5 hours behind

If it is 12:00 noon at Greenwich (0° longitude), what time is it at 60°E longitude?

• 4:00 PM

• 8:00 AM

• 2:00 PM

• 12:00 midnight

How does Daylight Saving Time (DST) affect time zone calculations?

• It adds 1 hour to the standard time throughout the year.

• It subtracts 1 hour from the standard time during certain months.

• It adds 1 hour to the standard time during certain months.

• It has no effect on time zone calculations.

What is the effect of latitude on time zones?

• Latitude determines the time zone.

• Latitude affects the length of day and night but not the time zone.

• Latitude is directly proportional to the number of time zones.

• Latitude changes the time zone every 15°.