Aleutian Islands Standard Time is10 hours behind Greenwich Mean Time ( GMT-10 ).
Aleutian Islands operates Daylight-Saving Timewhich is 9 hours behind Greenwich Mean Time ( GMT-9 )
The western most Aleutian islands and St. Lawrence island are on Hawaii-Aleutian Time, which are 10 hours behind Greenwich Mean Time (GMT-10) and where Daylight-Saving Time is not observed.
Hawaii-Aleutian time - the zone an hour behind Alaska Time - includes the settlements of Atka, Adak, Attu and Shemya. (The Pribilofs are in Alaska Time.)
Daylight-Saving Time is not observed
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