On 3 May your 1009 zone time DR position is LAT 30°01.0'N, LONG 123°15.0'W. Your vessel is on course 330°T at a speed of 8.6 knots. What is the zone time of local apparent noon (LAN)?

Correct Answer: Option B — 1211

Determine the longitude difference from the zone meridian (120°W). Apply the Equation of Time for 3 May. The vessel's movement toward the west delays the LAN. Using the standard formula for meridian passage, the calculated time of local apparent noon is 1211 ZT.