On 16 November your 0800 ZT DR position is LAT 25°11.0'N, LONG 117°41.0'W. Your vessel is on a course of 252°T at a speed of 14.5 knots. What is the ZT of local apparent noon (LAN)?

Correct Answer: Option B — 1139

Determine the longitude of the vessel at the time of LAN by accounting for the change in position due to the vessel's course and speed. Apply the time correction based on the longitude relative to the zone meridian. The calculation confirms the local apparent noon occurs at 1139 ZT.