noun
standard time in the 9th time zone west of Greenwich, reckoned at the 135th meridian west; used in Hawaii and most of Alaska
• Syn: ↑Alaska Standard Time
• Hypernyms: ↑civil time, ↑standard time, ↑local time
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noun or yukon standard timeUsage: capitalized Y
: the time of the 9th time zone west of Greenwich that includes the Yukon Territory and part of southern Alaska and is four hours slower than eastern time
Useful english dictionary. 2012.