On 12 February your 0930 zone time DR position is LAT 25°20.0'N, LONG 30°40.0'W. Your vessel is on course 135°T at a speed of 11.2 knots. What is the zone time of local apparent noon (LAN)?

Correct Answer: Option C — 1215

Find the difference in longitude between the 0930 DR position and the vessel's position at LAN after accounting for course and speed run. Apply this time interval to the tabulated ephemeris LAN time, resulting in local apparent noon at 1215.