143. On 2 January you are on a course of 094° T at a speed of 20 knots. At 0430 ZT, your DR position is LAT 24° 12' N, LONG 71° 24' W. Determine the zone time of sunrise.

Sunrise time is determined by latitude, declination, equation of time, and longitude, adjusted for the ship's eastward movement. Applying these factors results in a sunrise time of approximately 0627 zone time.