| 释义 | Atlantic Standard Time
 Atlantic Standard Timen. Abbr. AST Standard time in the fourth time zone west of Greenwich, England, reckoned at 60° west and used, for example, in Puerto Rico and the Canadian Maritime Provinces. Also called  Atlantic Time.Atlantic Standard Timen  (Units) the local time used in eastern Canada, four hours behind Greenwich Mean Time. Abbreviation: AST  Thesaurus| Noun | 1.  Atlantic Standard Time - standard time in the 4th time zone west of Greenwich, reckoned at the 60th meridian; used in Puerto Rico and the Virgin Islands and Bermuda and the Canadian Maritime ProvincesAtlantic Timecivil time, local time, standard time - the official time in a local region (adjusted for location around the Earth); established by law or custom | 
 Atlantic standard time
 Atlantic standard time[ət′lan·tik ¦stan·dərd ‚tīm]  (astronomy)  Atlantic time  AcronymsSeeASTAtlantic Standard TimeRelated to Atlantic Standard Time: Atlantic Daylight Time, Time zones
 Synonyms for Atlantic Standard Timenoun standard time in the 4th time zone west of Greenwich, reckoned at the 60th meridianSynonymsRelated Wordscivil timelocal timestandard time
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