Atlantic Standard Time
AST · UTC-4 · America/Barbados
Live Time
7:21PM
Saturday, October 31, 2026
UTC Offset
UTC-4
Abbreviation
AST
IANA Identifier
America/Barbados
Daylight Saving
Not observed
Countries
9 countries
Major Cities
Santo Domingo, Port of Spain, Bridgetown
Countries Using AST
🇦🇬
Antigua and Barbuda
North America · America/Barbados
🇧🇧
Barbados
North America · America/Barbados
🇩🇲
Dominica
North America · America/Barbados
🇩🇴
Dominican Republic
North America · America/Barbados
🇬🇩
Grenada
North America · America/Barbados
🇰🇳
Saint Kitts and Nevis
North America · America/Barbados
🇱🇨
Saint Lucia
North America · America/Barbados
🇻🇨
Saint Vincent and the Grenadines
North America · America/Barbados
🇹🇹
Trinidad and Tobago
North America · America/Barbados
Major Cities on AST
Hourly Conversion (AST → other zones)
| AST (UTC-4) | UTC | New York | London |
|---|---|---|---|
| 12:00 AM | 4:00 AM | 12:00 AM | 4:00 AM |
| 3:00 AM | 7:00 AM | 3:00 AM | 7:00 AM |
| 6:00 AM | 10:00 AM | 6:00 AM | 10:00 AM |
| 9:00 AM | 1:00 PM | 9:00 AM | 1:00 PM |
| 12:00 PM | 4:00 PM | 12:00 PM | 4:00 PM |
| 3:00 PM | 7:00 PM | 3:00 PM | 7:00 PM |
| 6:00 PM | 10:00 PM | 6:00 PM | 10:00 PM |
| 9:00 PM | 1:00 AM | 9:00 PM | 1:00 AM |
Frequently Asked Questions
What is the UTC offset for Atlantic Standard Time?
Atlantic Standard Time is currently at UTC-4.
What is the IANA identifier for Atlantic Standard Time?
The IANA time zone identifier is America/Barbados.
Does Atlantic Standard Time observe daylight saving time?
No. Atlantic Standard Time remains at AST year-round.