On 4 January your 0800 zone time DR position is LAT 25°25.0 S, LONG 16°09.0'W. Your vessel is on course 290°T at a speed of 13.5 knots. What is the zone time of local apparent noon (LAN)?

Correct Answer: Option D — 1213

Determining LAN requires finding the time of transit of the Sun across the local meridian. Using Bowditch formulas, apply the equation of time, longitude time equivalent, and account for vessel progression from the initial DR fix.