SOLUTION: When it is noon eastern standard time (EST) in New York City, it is 9:00 AM. Pacific standard time (PST) in San Francisco. A plane took off from New York City at noon EST and arriv

Question 273180: When it is noon eastern standard time (EST) in New York City, it is 9:00 AM. Pacific standard time (PST) in San Francisco. A plane took off from New York City at noon EST and arrived in San Francisco at 4:00 P.M. PST on the same day. If a second plane left San Francisco at noon PST and took exactly the same amount of time for the trip, what was the plane�s arrival time (EST) in New York City?

(A)10:00 P.M.EST (B) 9:00 P.M. EST (C) 7:00 P.M. EST (D) 6:00 P.M. EST (E) 4:00 P.M. EST

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
When it is noon eastern standard time (EST) in New York City, it is 9:00 AM. Pacific standard time (PST) in San Francisco. A plane took off from New York City at noon EST and arrived in San Francisco at 4:00 P.M. PST on the same day. If a second plane left San Francisco at noon PST and took exactly the same amount of time for the trip, what was the plane�s arrival time (EST) in New York City?
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Step 1, convert all times to GMT, Greenwich Mean Time.
GMT = EST + 5
GMT = PST + 8
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A plane took off from New York City at 1700Z and arrived in San Francisco at 0000Z on the same day. If a second plane left San Francisco at 2000Z and took exactly the same amount of time for the trip, what was the plane�s arrival time in New York City?
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The plane from NY to SFO took 7 hours (0000 - 1700).
2000 + 700 = 0300Z (the next day), for the arrival in NY.
0300Z = 10 PM EST the same day
A
(A)10:00 P.M.EST (B) 9:00 P.M. EST (C) 7:00 P.M. EST (D) 6:00 P.M. EST (E) 4:00 P.M. EST
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Aviation does not use local time, they use GMT, and call it "Zulu time" from the Z used to designate it. This keeps all airplanes and ATC (Air Traffic Control) using the same times world-wide.
There's no AM and PM used either, obviously. Most countries in the world use a 24 hour clock, not the AM and PM foolishness.

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