Deck Navigation (Supplementary) USCG Q#1753 (Set 5)

You are in LONG 165°E, zone time at 0400, 1 November. What is the zone time and date in LONG 165°W?

Official USCG Answer & Rule Citation

Correct Answer: Option A — 0600, 31 October

Time zone calculation requires determining the difference between 165°E (+11) and 165°W (-11), totaling 22 hours. Moving eastward across the International Date Line subtracts 22 hours from 0400 on 1 November. This shift results in 0600 on 31 October, adhering to standard nautical time zone conversion procedures outlined in Bowditch.

All Deck Navigation (Supplementary) Sets Practice Set 5