On 10 December your 1300 zone time (ZT) DR position is LAT 26°27.0'S, LONG 79°04.0'E. You are on course 068°T at a speed of 14 knots. What will be the zone time of sunset at your vessel?

Correct Answer: Option C — 1824

Calculate the DR position at the approximate time of sunset. Extract the tabular sunset time from the Nautical Almanac for the given latitude and date. Apply the longitude correction to adjust for the vessel's position relative to the zone meridian, resulting in a zone time of 1824.