On 16 November your 0800 zone time DR position is LAT 25°11.0'N, LONG 117°41.0'W. Your vessel is on course 252°T at a speed of 14.5 knots. What is the zone time of local apparent noon (LAN)?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 1139
Applying Bowditch procedures for local apparent noon, account for vessel speed and course to update the longitude at LAN. Combining the updated longitude time equivalent with the Nautical Almanac equation of time gives a zone time of 1139.
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