147. On 5 May your 1800 ZT DR position is LAT 26°11.5'N, LONG 65°35.0'W. You are on course 270°T at a speed of 12 knots. What will be the ZT of sunset at your vessel?

The correct sunset time is determined by converting the local mean time of sunset from the Nautical Almanac to zone time, accounting for the vessel's longitude and westward movement. This involves calculating the time difference due to longitude, adjusting for the ship's position west of the zone meridian, and factoring in the distance traveled during the time between the initial position and sunset.