On 16 February your 0300 ZT DR position is LAT 28°32.0'S, LONG 176°49.0'E. You are on course 082°T at a speed of 21 knots. What will be the zone time of sunrise at your vessel?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 0552
Determine the time of sunrise using the Nautical Almanac for the DR latitude. Interpolate for the date and longitude. Adjust the tabular time for the vessel's movement toward the sunrise line. Applying the correction for the 082°T course at 21 knots results in a zone time of 0552.
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