On 22 November your 1400 ZT DR position is LAT 22°16.0'N, LONG 136°37.0'E. You are on course 038°T at a speed of 22 knots. What will be the zone time of sunset at your vessel?

Correct Answer: Option C — 1705

Estimate the sunset time by calculating the DR position at the expected time of sunset. Use the Nautical Almanac to find the tabular sunset time for the latitude. Apply the longitude correction to convert to the vessel's zone time, yielding the correct result of 1705.