Given 142° 13.9' West, what is the time zone offset from Zulu in hours?

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Multiple Choice

Given 142° 13.9' West, what is the time zone offset from Zulu in hours?

Zulu time is UTC. To find the offset, divide longitude by 15 because each 15° of longitude corresponds to 1 hour. For 142°13.9′ West, convert to decimal: 142.2317° W. Then 142.2317 ÷ 15 = 9.4888 hours. West of Greenwich means local time is behind UTC by about 9 hours 29 minutes, so the offset is roughly −9.5 hours. When expressed as a whole-hour value, the magnitude is 9 hours behind, which is why the answer matches a 9-hour offset. The other options would require longitudes further east or west than 142.23° W (e.g., 8 hours ≈ 120°W, 10 hours ≈ 150°W, 11 hours ≈ 165°W).

Zulu time is UTC. To find the offset, divide longitude by 15 because each 15° of longitude corresponds to 1 hour. For 142°13.9′ West, convert to decimal: 142.2317° W. Then 142.2317 ÷ 15 = 9.4888 hours. West of Greenwich means local time is behind UTC by about 9 hours 29 minutes, so the offset is roughly −9.5 hours. When expressed as a whole-hour value, the magnitude is 9 hours behind, which is why the answer matches a 9-hour offset. The other options would require longitudes further east or west than 142.23° W (e.g., 8 hours ≈ 120°W, 10 hours ≈ 150°W, 11 hours ≈ 165°W).

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