You are on a voyage from Belem, Brazil to Mobile, AL. The distance from departure to arrival is 3150 miles. The speed of advance is 14.0 knots. You estimate a layover in San Juan, Puerto Rico, of 17.5 hours. If you took departure at 2200 (ZD +3h 30m), 26 February, what was your ETA (ZD +6) at Mobile?

Correct Answer: Option B — 2200, 8 March

Compute total elapsed transit time via distance and SOA, adding the San Juan layover. Convert the initial departure time to UTC and step forward by total elapsed hours, then apply the destination zone description (+6) to establish the correct local arrival time according to standard Bowditch navigational procedures.