Atlantic Standard Time (AST) is a time zone that is observed in certain regions of North America and the Caribbean. It is defined as the time standard used in the Atlantic region, specifically in countries such as Canada, the United States, Puerto Rico, and several Caribbean islands. AST is four hours behind Coordinated Universal Time (UTC-4) during standard time and three hours behind during daylight saving time when it is known as Atlantic Daylight Time (ADT).
The primary purpose of Atlantic Standard Time is to establish a consistent time reference for areas that fall within this time zone. It helps in synchronizing activities, such as transportation, communications, and commerce, across these regions. By adhering to this time standard, it ensures that people in the Atlantic region are on the same time as their neighbors, reducing confusion and facilitating coordination.
Atlantic Standard Time is commonly used within regions such as the Canadian provinces of New Brunswick, Prince Edward Island, and Nova Scotia, as well as parts of Quebec and Labrador. In the United States, it is observed in Puerto Rico and a few smaller Caribbean islands. While some areas in this time zone may not observe daylight saving time, those that do shift to Atlantic Daylight Time during the summer in order to maximize daylight hours.
Overall, Atlantic Standard Time is an important time reference in the Atlantic region, providing consistency and coordination for various functions and activities in this particular geographic area.
