On 26 September your 0830 zone time DR position is LAT 23°04.0'N, LONG 129°16.0'E. Your vessel is on course 119°T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?

Correct Answer: Option C — 1210

Calculate the vessel's movement toward the sun to determine the time of LAN. Convert the longitude difference from the reference meridian to time. Adjusting for the vessel's speed and course relative to the sun's movement, the calculated zone time of local apparent noon is 1210.