Navigation Problems USCG Question #1382 (Set 41)

At 1544 zone time on 5 October your DR position is LAT 25°00'N, LONG 60°15'W. You are steering 270°T at a speed of 6.8 knots. What is the zone time of sunset?

Official USCG Answer & Rule Citation

Correct Answer: Option D — 1745

Bowditch formulas for celestial twilight and sunrise/sunset dictate applying local longitude corrections to the tabular time in the Nautical Almanac. For this position and date, the calculation results in 1745 zone time.

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