On 12 February your 0930 zone time DR position is LAT 25°20.0'N, LONG 30°40.0'W. Your vessel is on course 135°T at a speed of 11.2 knots. What is the zone time of local apparent noon (LAN)?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 1215
Per Bowditch standards, project the vessel's DR position to local apparent noon using course and speed vectors. Apply the longitude time correction and the equation of time to calculate the exact zone time of LAN as 1215.
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