AST/ADT Time Now

About Atlantic Standard Time (AST)

Atlantic Standard Time (AST) is the standard time observed in parts of the Atlantic region during the winter months. The time zone offset of AST is UTC-04:00, which means it is 4 hours behind Coordinated Universal Time (UTC).

Atlantic Standard Time is used in parts of eastern Canada, including Nova Scotia, New Brunswick, Prince Edward Island, and Newfoundland and Labrador, as well as several Caribbean countries.

During the warmer months, some regions that use AST switch to Atlantic Daylight Time (ADT), which has a UTC offset of UTC-03:00.