What does AST stand for?

AST stands for Atlantic Standard Time. AST is UTC-4.

What is AST time zone?

AST (Atlantic Standard Time) is UTC-4.

AST is used in Anguilla, Antigua, Aruba and 7 more cities.

How to convert AST to UTC?

To convert AST to UTC, add 4 hours. For example, if it's 2:00 PM AST, it's later in UTC. Use our time converter to convert AST to EST, PST, and other time zones.

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ASTTime Now

Atlantic Standard TimeUTC-4

CurrentMultiple

AST Has Multiple Meanings

Time zone abbreviations are not globally unique. findtime.io separates each meaning so lookups, offsets, and conversion links route to the right page.

Atlantic Standard Time (this page)North America, Atlantic, Caribbean · CurrentUTC-4 Arabia Standard TimeAsia · CurrentUTC+3 Atlantic Standard TimeAtlantic · CurrentUTC-4

12h|24h

CURRENT TIME

04:16:48pm

June 22, 2026

UTC TIME NOW

08:16:48pm

Monday, Jun 22

UTC+0

12h|24h

UTC Offset

UTC-4

DST Statusⓘ

Standard Time (mixed)

Observes DST:

Canada(America/Glace_Bay, America/Halifax, America/Moncton)

Does not observe DST:

AG(America/Antigua), AI(America/Anguilla), AW(America/Aruba), Barbados(America/Barbados), BL(America/St_Barthelemy), BQ(America/Kralendijk), Curaçao(America/Curacao), Dominica(America/Dominica), Dominican Republic(America/Santo_Domingo), GD(America/Grenada), GP(America/Guadeloupe), KN(America/St_Kitts), LC(America/St_Lucia), Martinique(America/Martinique), MF(America/Marigot), MS(America/Montserrat), Puerto Rico(America/Puerto_Rico), SX(America/Lower_Princes), Trinidad(America/Port_of_Spain), VC(America/St_Vincent), VG(America/Tortola), VI(America/St_Thomas)

IANA Zones