General Navigation USCG Question #2213 (Set 68)

Your longitude is 179°59'W. The LMT at this longitude is 23h 56m on the 4th day of the month. Six minutes later, your position is 179°59'E longitude. Your LMT and date are __________.

Official USCG Answer & Rule Citation

Correct Answer: Option D — 00h 02m on the 6th

Crossing the 180th meridian from west to east causes the date to decrease by one day, but the problem states crossing from 179°59'W to 179°59'E, which crosses the International Date Line heading west. Adding 6 minutes to 23h 56m on the 4th advances time to 00h 02m and rolls the date forward to the 6th due to skipping a full calendar day eastward.

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