At 1820 zone time, on 21 March, you depart San Francisco, LAT 37°48.5'N, LONG 122°24.0'W (ZD +8). You are bound for Melbourne, LAT 37°49.2'S, LONG 144°56.0'E, and you estimate your speed of advance at 21 knots. The distance is 6,970 miles. What is your estimated zone time of arrival at Melbourne?

Question

At 1820 zone time, on 21 March, you depart San Francisco, LAT 37&deg;48.5'N, LONG 122&deg;24.0'W (ZD +8). You are bound for Melbourne, LAT 37&deg;49.2'S, LONG 144&deg;56.0'E, and you estimate your speed of advance at 21 knots. The distance is 6,970 miles. What is your estimated zone time of arrival at Melbourne?

Accepted Answer

Option C: 0814, 5 April. Calculate the total travel time by dividing distance by speed (6970 / 21 = 331.9 hours). Convert this to days and hours, then apply the time zone difference between San Francisco and Melbourne. Adding the elapsed time to the departure time results in an arrival of 0814 on 5 April.