You are in LONG 144°E. The date is 6 February, and the zone time is 0800. The Greenwich date and time are __________.

Correct Answer: Option A — 2200, 5 February

With a longitude of 144¼irc East, the vessel is in time zone -9. Subtracting 9 hours from the zone time of 0800 on 6 February gives a Greenwich Mean Time of 2300 on 5 February.