If a place is located at 120°W longitude, what is its time offset from UTC?
Practice Questions
1 question
Q1
If a place is located at 120°W longitude, what is its time offset from UTC?
UTC-8
UTC-7
UTC-6
UTC-5
120°W corresponds to UTC-8, as each 15° represents one hour.
Questions & Step-by-step Solutions
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Q
Q: If a place is located at 120°W longitude, what is its time offset from UTC?
Solution: 120°W corresponds to UTC-8, as each 15° represents one hour.
Steps: 7
Step 1: Understand that longitude lines measure how far east or west a place is from the Prime Meridian, which is at 0° longitude.
Step 2: Know that the Earth is divided into 360 degrees of longitude.
Step 3: Realize that the Earth rotates once every 24 hours.
Step 4: Calculate how many degrees of longitude correspond to one hour of time. This is done by dividing 360 degrees by 24 hours, which equals 15 degrees per hour.
Step 5: Since 120°W is west of the Prime Meridian, it is considered a negative offset from UTC (Coordinated Universal Time).
Step 6: Divide 120° by 15° to find out how many hours behind UTC it is. 120° ÷ 15° = 8 hours.
Step 7: Conclude that a location at 120°W longitude has a time offset of UTC-8.
