You are on a voyage from Boston, MA to the South Pass, LA. The distance is 1870 miles, and the speed of advance is 13.6 knots. You estimate 16.5 hours for bunkering enroute at Port Everglades, FL. If you sailed at 0836 hours (ZD +5), 26 February, what was your ETA (ZD +6) at the South Pass?

Correct Answer: Option D — 1736, 4 March

Calculate total steaming time by dividing the distance by the speed of advance, then add the bunkering layover. Apply the zone description difference (+5 to +6 equals a one-hour subtraction) to convert departure time through elapsed hours to the final arrival zone time, per Bowditch dead reckoning principles.