Common questions about Antigua and Barbuda's time zone, daylight saving rules, and how to handle it in software. Can't find what you need? Email [email protected].

What timezone is Antigua and Barbuda in?: Antigua and Barbuda uses Atlantic Standard Time (AST), which is UTC-4:00. There's no daylight saving time, so the offset remains UTC-4 year-round.
Does Antigua and Barbuda observe daylight saving time?: No. Antigua and Barbuda stays on Atlantic Standard Time (AST) throughout the year without any daylight saving time changes.
How does Antigua and Barbuda's time compare to US Eastern Time?: Antigua and Barbuda is one hour ahead of US Eastern Standard Time (UTC-5). During US daylight saving time (EDT, UTC-4), Antigua and Barbuda is at the same time as the US East Coast.
Is the entire country in one timezone?: Yes, Antigua and Barbuda has a single timezone covering all its islands — Antigua, Barbuda, and Redonda — all follow Atlantic Standard Time (UTC-4).

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Time, as JSON.

Every IANA time zone with live offsets, DST status, and the countries and cities that use them — clean, dependable JSON. Sign up free and get an API key in seconds.

GET /v1/timezones Live

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// France's time zones, right now

GET /v1/timezones?country=fr

{

"data": [

{

"iana": "Europe/Paris",

"display_name": "Paris",

"current": {

"utc_offset": "+02:00",

"abbreviation": "CEST",

"is_dst": true

}

]

}