On 2 April your 0900 zone time DR position is LAT 28°04.0'S, LONG 94°14.0'E. Your vessel is on course 316°T at a speed of 18.5 knots. What is the zone time of local apparent noon (LAN)?

Correct Answer: Option D — 1149

Local apparent noon depends on the equation of time and the vessel's longitude relative to the standard meridian. Applying Bowditch time-arc conversions and dead reckoning updates from the 0900 position to the longitude of LAN yields a zone time of exactly 1149.