Caribbean time zones:

AST – Atlantic Standard Time

Time zone offset: UTC - 4 hours

AST is 4 hours behind of Coordinated Universal Time (UTC)

Time zone abbreviations: AST, HNA

Full name is Atlantic Standard Time
HNA – Heure Normale de l'Atlantique (French)
AST – Tiempo Estándar del Atlántico (Spanish)

Email time zone indicator: -0400

An email sent from someone in the AST time zone will have the time zone listed as "-0400" in the headers of the email. (However, "-0400" does not have to be in AST, as other time zones could have the same UTC offset).

For actual dates DST might be observed, look at the examples below

Advertising

Where and when is AST observed?

AST is used all year

• Anguilla
• Antigua and Barbuda
• Aruba
• Barbados
• British Virgin Islands
• Dominica
• Dominican Republic
• Grenada
• Martinique
• Puerto Rico
• Saint Kitts and Nevis
• Saint Lucia
• Saint Vincent and Grenadines
• Trinidad and Tobago
• US Virgin Islands

Time zone maps are under development and will be available later

Example location in AST

• Santo Domingo - This time zone offset is used all year in this location

Other time zones in Caribbean

Go directly through the links below, or see the Caribbean time zone list

• CDT - Cuba Daylight Time
• CST - Cuba Standard Time
• EDT - Eastern Daylight Time
• EST - Eastern Standard Time

Time zones in other regions

• Africa
• Antarctica
• Asia
• Atlantic
• Australia
• Central America
• Europe
• Indian Ocean
• Military
• North America
• Pacific
• South America

Related links

• Time zone abbreviations world-wide
• The World Clock - Time Zones - current time around the world
• The World Clock - Time Zone Converter - Convert between time zones