At 0327 ZT on 29 May, your DR position is LAT 25°00'N, LONG 64°15'W. You are steering 270°T at a speed of 13.6 knots. What is the zone time of sunrise?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 0529
Determine the LHA of the Sun at the DR position. Use the Nautical Almanac to find the time of sunrise for the given latitude. Adjust for the longitude difference from the zone meridian (64°15'W is in +4 zone). Applying the interpolation table yields the correct zone time of 0529.
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