A place is located at 45°N latitude and 90°W longitude. What is the time at this

Practice Questions

Q1
A place is located at 45°N latitude and 90°W longitude. What is the time at this location when it is 3:00 PM GMT? (2019)
  1. 10:00 AM
  2. 11:00 AM
  3. 12:00 PM
  4. 1:00 PM

Questions & Step-by-Step Solutions

A place is located at 45°N latitude and 90°W longitude. What is the time at this location when it is 3:00 PM GMT? (2019)
  • Step 1: Understand that GMT (Greenwich Mean Time) is the time at the Prime Meridian (0° longitude).
  • Step 2: Identify the location's longitude, which is 90°W.
  • Step 3: Calculate the time difference from GMT. Each 15° of longitude represents 1 hour of time difference.
  • Step 4: Since the location is at 90°W, divide 90° by 15° to find the time difference: 90° / 15° = 6 hours.
  • Step 5: Determine if the location is ahead or behind GMT. Since it is 90°W, it is behind GMT.
  • Step 6: Subtract the time difference from GMT time. If it is 3:00 PM GMT, then subtract 6 hours: 3:00 PM - 6 hours = 9:00 AM.
  • Step 7: Conclude that the time at the location is 9:00 AM.
  • Time Zones – Understanding how longitude affects local time in relation to GMT.
  • Longitude Calculation – Calculating time differences based on degrees of longitude.
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