Atlantic Time (Halifax)

Atlantic Time (AT) covers Canada's Maritime provinces — Nova Scotia, New Brunswick, Prince Edward Island — and most of Labrador. AST (Atlantic Standard Time) is UTC-4, while ADT (Atlantic Daylight Time) is UTC-3. Atlantic Time is one hour ahead of Eastern Time, which creates a unique dynamic for the region's economy. Halifax, the largest city, is a major port and the economic hub of Atlantic Canada, home to a significant naval base and a growing technology sector. The Atlantic timezone is also used by most Caribbean islands, creating a natural connection between Atlantic Canada and the Caribbean. The timezone was established when Canada's eastern provinces needed their own designation separate from Eastern Time, reflecting their geographic position further east. Atlantic Canada's proximity to Europe means business hours overlap well with Western European time zones. The region's fishing, shipping, and offshore oil industries all operate on Atlantic Time, coordinating with international partners across the Atlantic Ocean.