The standard time in a zone including the easternmost parts of mainland Canada, Puerto Rico, and the Virgin Islands, specifically.
- (Atlantic Standard Time, abbreviation AST) Standard time based on the mean solar time at the longitude 60° W, four hours behind GMT. (Atlantic Daylight Time, abbreviation ADT) Atlantic time during daylight savings, three hours behind GMT..
- The data suggests that joining the Atlantic time zone would reduce Quebec's high rates of depression.
- Kate linked to a story this week in the Mirror that makes a case for Quebec joining the Atlantic time zone.
- Official time is four hours behind Greenwich Mean Time, one hour ahead of Atlantic Standard Time.
For editors and proofreaders
Syllabification: At·lan·tic time
Definition of Atlantic time in:
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