At 0915 zone time on 11 May you depart Yokohama, LAT 35°27.0'N, LONG 139°39.0'E (ZD -9). You are bound for Seattle, LAT 47°36.0'N, LONG 122°22.0'W, and you estimate your speed of advance at 19.5 knots. The distance is 4,276 miles. What is your estimated zone time of arrival at Seattle?

Correct Answer: Option C — 1932, 19 May

Calculate the total transit time by dividing distance by speed (4276 / 19.5 = 219.28 hours). Convert this to days and hours, then apply the zone time difference between Yokohama (ZD -9) and Seattle (ZD +8). The total time shift results in an arrival of 1932 on 19 May.