If it is 12:00 noon at the Prime Meridian (0° longitude), what time is it at 75°

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Question: If it is 12:00 noon at the Prime Meridian (0° longitude), what time is it at 75°W longitude?

Options:

Correct Answer: 8:00 AM

Solution:

Each degree of longitude represents 4 minutes of time. 75°W = 75 * 4 = 300 minutes = 5 hours. Therefore, it is 12:00 noon - 5 hours = 7:00 AM.

If it is 12:00 noon at the Prime Meridian (0° longitude), what time is it at 75°W longitude?

If it is 12:00 noon at the Prime Meridian (0° longitude), what time is it at 75°W longitude?

Step 1: Understand that the Prime Meridian (0° longitude) is the starting point for measuring time.
Step 2: Know that each degree of longitude represents 4 minutes of time difference.
Step 3: Calculate the time difference for 75°W longitude by multiplying 75 degrees by 4 minutes per degree.
Step 4: Perform the multiplication: 75 * 4 = 300 minutes.
Step 5: Convert 300 minutes into hours by dividing by 60 (since there are 60 minutes in an hour): 300 ÷ 60 = 5 hours.
Step 6: Since 75°W is west of the Prime Meridian, subtract the 5 hours from 12:00 noon.
Step 7: Calculate 12:00 noon - 5 hours = 7:00 AM.

Time Zones – Understanding how time changes with longitude, specifically that each degree of longitude corresponds to a time difference of 4 minutes.
Longitude Calculation – Calculating the time difference based on the degrees of longitude east or west of the Prime Meridian.