AST – Atlantic Standard Time

UTC−4 • DST → ADT • 8 IANA zones

Time Zone Details

Abbreviation
AST
Full Name
Atlantic Standard Time
UTC Offset
UTC−4
Daylight Saving
Yes → ADT

IANA Zones: America/Halifax, America/Glace_Bay, America/Moncton, America/Goose_Bay, America/Barbados, America/Martinique, America/Puerto_Rico, America/Santo_Domingo

Cities in AST (19)

Related Time Zones

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Frequently Asked Questions

What does AST stand for?

AST stands for Atlantic Standard Time. It is UTC−4 from Coordinated Universal Time (UTC).

What is the current time in AST?

The live clock on this page shows the real-time current AST time. It updates every second.

What is the UTC offset for AST?

AST (Atlantic Standard Time) has an offset of UTC−4 from UTC.

Does AST observe Daylight Saving Time?

Yes, AST observes DST. During daylight saving, it transitions to ADT.

What countries use AST?

Cities in the AST time zone include Riyadh, Saudi Arabia; Baghdad, Iraq; Kuwait City, Kuwait; Jeddah, Saudi Arabia; Sana'a, Yemen.

How do I convert AST to my local time?

Use BuddyClock's time converter tools to convert AST to any other time zone. You can also click on the cities listed below to see their local times.

What IANA time zones correspond to AST?

The IANA time zones for AST include: America/Halifax, America/Glace_Bay, America/Moncton, America/Goose_Bay, America/Barbados, America/Martinique, America/Puerto_Rico, America/Santo_Domingo.

What is the difference between AST and UTC?

AST is 4 hours behind UTC.

What time zones are related to AST?

Related time zones include: ADT. These are typically DST counterparts or geographically adjacent zones.

How many major cities are in the AST zone?

BuddyClock lists 19 major cities in the AST time zone.