zone time


noun

standard time as applied at sea, reckoned according to the system of time zones.

Origin of zone time

First recorded in 1905–10

British Dictionary definitions for zonetime

zonetime
/ (ˈzəʊnˌtaɪm) /

noun

the standard time of the time zone in which a ship is located at sea, each zone extending 7 1/2 ° to each side of a meridian