Your 0830 DR position is LAT 27°33'S, LONG 79°17'E. Your vessel is on a course of 066°T, at a speed of 19.5 knots. Determine the time of LAN on 10 December.

Correct Answer: Option B — 1131

Local Apparent Noon (LAN) occurs when the Sun crosses the observer's meridian. Calculate the time of transit by applying the longitude correction to the GHA of the Sun. Adjusting for the vessel's movement on course 066°T at 19.5 knots toward the meridian yields the correct zone time of 1131.