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?

Correct Answer: Option A — 0458

Determine the LMT of sunrise for the DR latitude using the Nautical Almanac. Convert to ZT by applying the longitude correction for 85°33'W. Adjust for the vessel's movement toward the west. The resulting zone time of sunrise is 0458.