What is the local time at 15°E when it is 6:00 PM at 0° longitude? (2021)

Practice Questions

Q1
What is the local time at 15°E when it is 6:00 PM at 0° longitude? (2021)
  1. 7:00 PM
  2. 6:00 PM
  3. 5:00 PM
  4. 4:00 PM

Questions & Step-by-Step Solutions

What is the local time at 15°E when it is 6:00 PM at 0° longitude? (2021)
  • Step 1: Understand that 0° longitude is the Prime Meridian, where the time is set to 6:00 PM in this question.
  • Step 2: Know that the Earth is divided into 360 degrees of longitude, and it takes 24 hours for the Earth to complete one full rotation.
  • Step 3: Calculate how many degrees of longitude correspond to one hour of time. Since 360 degrees / 24 hours = 15 degrees per hour.
  • Step 4: Identify that 15°E is 15 degrees east of the Prime Meridian (0° longitude).
  • Step 5: Since 15°E is one full hour ahead of 0° longitude, add 1 hour to the time at 0° longitude.
  • Step 6: Add 1 hour to 6:00 PM, which gives you 7:00 PM.
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