Current Time in Atlantic Time

00:00:20
 
ADT
is ... in your time.

Time zone info for Atlantic Time

UTC -3 ADT

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  • ❄️ End DST on Sunday, November 1, 2026. New time: UTC -4 / AST
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  • The IANA time zone identifiers for this time zone are: America/Anguilla, America/Antigua, America/Aruba, America/Barbados, America/Blanc-Sablon, America/Curacao, America/Dominica, America/Glace_Bay, America/Goose_Bay, America/Grenada, America/Guadeloupe, America/Halifax, America/Kralendijk, America/Lower_Princes, America/Marigot, America/Martinique, America/Moncton, America/Montserrat, America/Port_of_Spain, America/Puerto_Rico, America/Santo_Domingo, America/St_Barthelemy, America/St_Kitts, America/St_Lucia, America/St_Thomas, America/St_Vincent, America/Thule, America/Tortola, America/Virgin, Atlantic/Bermuda, Canada/Atlantic.

🌊 Summary of AT (Atlantic Time)

Atlantic Time is used in parts of eastern Canada and some Caribbean territories. Many regions observe daylight saving time.

Key Points

  • Standard Offset (AST): UTC−04:00.
  • Daylight (ADT): UTC−03:00 (where observed; Mar–Nov).
  • Coverage: Canadian provinces such as New Brunswick, Nova Scotia, Prince Edward Island; parts of Labrador and some Caribbean islands (varies).

🗺️Countries and Cities Using Atlantic Time