At 0400 zone time on 24 June, your DR position is LAT 23°10.0'N, LONG 085°33'W. You are steering 295°T at a speed of 10.0 knots. What is the zone time of sunrise?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 0458
Determine the time of sunrise at the DR position using the Nautical Almanac's sunrise tables. Interpolate for the specific latitude and longitude. Adjust the tabular time for the vessel's longitude relative to the zone meridian to arrive at the local zone time of 0458.
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