Question 1743Navigation General

The correct answer is C) The observer is in time zone -4. At 1200 local time for an observer at 54°E longitude, the observer is in the time zone that is 4 hours behind UTC (Coordinated Universal Time), which is the standard time reference. This means the observer is in the UTC-4 time zone. The other options are incorrect: A) It is not midnight at 126°E longitude, as that location is 6 hours ahead of the observer's location. B) It is not afternoon at Greenwich (0°E longitude), as Greenwich is 2 hours ahead of the observer's location. D) Not all of the above statements are true, as options A and B are incorrect.