Atlantic time

Atlantic Time (AT) is a time zone used in several countries in the Atlantic Ocean, parts of the Caribbean, and some regions in Canada and the United States. The Atlantic Time Zone is one hour ahead of the Eastern Time Zone and four hours behind Coordinated Universal Time (UTC-4). During daylight saving time, it becomes Atlantic Daylight Time (ADT), and the offset changes to UTC-3.

Overview

The Atlantic Time Zone is used by several countries and regions. In Canada, it is used by New Brunswick, Prince Edward Island, Nova Scotia, and Labrador. In the United States, it is used by the state of Maine and parts of the state of Florida. Some regions in the Caribbean, such as Puerto Rico and the U.S. Virgin Islands, also use Atlantic Time.

Daylight Saving Time

During daylight saving time, which typically begins on the second Sunday in March and ends on the first Sunday in November, the time is adjusted forward by one hour. This results in more daylight in the evenings and less in the mornings. During this period, the time zone becomes Atlantic Daylight Time (ADT) and the offset changes to UTC-3.

Impact

The use of Atlantic Time has several impacts on the regions that observe it. It affects the scheduling of television broadcasts, transportation schedules, and business operations. It also has implications for health, energy use, and crime rates.

See also

• Time zone
• Eastern Time Zone
• Daylight saving time
• Coordinated Universal Time