Definition

1. Noun:
   • A time zone: Atlantic Standard Time (AST) is the standard time observed in a specific geographical region. It is four hours behind Coordinated Universal Time (UTC-4).
   • A time offset: It refers to the time calculated at the 60th meridian west of Greenwich, used as the standard time reference for certain areas.

Usage Examples

• Noun:
  • The conference call is scheduled for 2:00 PM Atlantic Standard Time.
  • During the winter, Nova Scotia observes Atlantic Standard Time.

Advanced Usage

• "AST": The common abbreviation for Atlantic Standard Time.

  • Please convert the UTC timestamp to AST.

• Contrast with Atlantic Daylight Time (ADT): Atlantic Standard Time is the standard time, whereas Atlantic Daylight Time (UTC-3) is the daylight saving time observed in the same region during part of the year.

  • The province switches from Atlantic Standard Time to Atlantic Daylight Time in March.

Variants and Related Words

• Atlantic Daylight Time (ADT) (n): The daylight saving time observed in the Atlantic Time Zone, which is one hour ahead of Atlantic Standard Time (UTC-3).

Synonyms

• UTC-4: The Coordinated Universal Time offset that defines Atlantic Standard Time.
• Atlantic Time: A broader term that can refer to either the standard or daylight time observed in the Atlantic zone.

Related Phrases

• Observe Atlantic Standard Time: To use AST as the official local time.
  • Several Canadian provinces observe Atlantic Standard Time.

Noun

1. standard time in the 4th time zone west of Greenwich, reckoned at the 60th meridian; used in Puerto Rico and the Virgin Islands and Bermuda and the Canadian Maritime Provinces