Intosoft 工具

AST to United Arab Emirates

+8h

AST

ASTSOURCE
UTC-03:00☀ DST active
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

United Arab Emirates

GST
UTC+04:00
HH08
:
MM00
  
20:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM
AST
United Arab Emirates
12:00 AM
7:00 AM
2:00 AM
9:00 AM
4:00 AM
11:00 AM
6:00 AM
1:00 PM
8:00 AM
3:00 PM
10:00 AM
5:00 PM
12:00 PM
7:00 PM
2:00 PM
9:00 PM
4:00 PM
11:00 PM
6:00 PM
1:00 AM+1
8:00 PM
3:00 AM+1
10:00 PM
5:00 AM+1

Green rows indicate typical business hours (9 AM - 5 PM)

AST and GST on the World Map

The map below highlights the AST (Atlantic Standard Time) and GST (Gulf Standard Time) timezone regions across the globe.

ASTGSTHalifaxSan JuanSanto DomingoCaracasDubaiAbu DhabiMuscatBaku
AST Zone
→
GST Zone

Explore all world timezones interactively →

AST – Atlantic Standard Time

UTC-04:00

Atlantic Standard Time (AST) is the time zone for the Canadian Atlantic provinces and the Caribbean, 4 hours behind UTC.

Countries in AST
Canada (Atlantic provinces)Puerto RicoUS Virgin IslandsDominican RepublicVenezuelaBoliviaBarbadosTrinidad and Tobago
Major Cities in AST
HalifaxSan JuanSanto DomingoCaracasLa PazFrederictonCharlottetown
Key Facts about AST
  • •Puerto Rico uses AST year-round and does not observe DST.
  • •AST is 1 hour ahead of EST.
  • •Halifax, the capital of Nova Scotia, is the largest city in AST Canada.
Daylight Saving:Yes – switches to ADT
Learn more about AST on Wikipedia

GST – Gulf Standard Time

UTC+04:00

Gulf Standard Time (GST) is used in the UAE, Oman, and other Gulf states, 4 hours ahead of UTC.

Countries in GST
UAEOmanGeorgiaAzerbaijanMauritius
Major Cities in GST
DubaiAbu DhabiMuscatBakuTbilisi
Key Facts about GST
  • •Dubai uses GST year-round with no daylight saving time.
  • •GST is 9 hours ahead of EST and 4 hours ahead of GMT.
  • •The Dubai Financial Market (DFM) operates on GST.
Daylight Saving:No – UTC+04:00 year-round
Learn more about GST on Wikipedia

Comparing Time Zones: AST and United Arab Emirates

AST runs on Atlantic Standard Time (AST) at UTC-04:00. United Arab Emirates runs on Gulf Standard Time (GST) at UTC+04:00. That puts AST 8 hours ahead of United Arab Emirates — a difference of +8h at the current offsets.

In practice, when it is 9:00 AM in AST it is 5:00 PM in United Arab Emirates. Midnight in AST is 8:00 AM in United Arab Emirates. Neither zone observes daylight saving time, so the offset between them stays constant all year.

AST to United Arab Emirates time conversion table

AST (AST)United Arab Emirates (GST)Day
12:00 AM8:00 AMsame day
6:00 AM2:00 PMsame day
7:00 AM3:00 PMsame day
8:00 AM4:00 PMsame day
9:00 AM5:00 PMsame day
12:00 PM8:00 PMsame day
3:00 PM11:00 PMsame day
5:00 PM1:00 AMnext day
6:00 PM2:00 AMnext day
9:00 PM5:00 AMnext day

Why people convert AST to United Arab Emirates time

  • Scheduling a call from AST to United Arab Emirates: a 10:00 AM start in AST lands at 6:00 PM in United Arab Emirates, so you can confirm the slot without doing the arithmetic yourself.
  • Handling a +8h gap: AST and United Arab Emirates have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in United Arab Emirates is 5:00 PM in AST.
  • Coordinating a AST-based team with United Arab Emirates contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
  • Always state the zone abbreviation, not just the hour. "3:00 PM AST" is unambiguous; "3 PM" across a +8h gap is not.
  • With a +8h gap there is no shared 9-to-5 window, so alternate the early start: one week AST takes the early slot, the next week United Arab Emirates does.

About AST (Atlantic Standard Time)

Atlantic Standard Time (AST) covers Canada's Atlantic provinces (Nova Scotia, New Brunswick, Prince Edward Island, and most of Labrador), as well as several Caribbean nations. Puerto Rico and the US Virgin Islands use AST year-round without daylight saving time. The Canadian provinces switch to Atlantic Daylight Time (ADT) in summer.

About GST (Gulf Standard Time)

Gulf Standard Time (GST) is the time zone used in the United Arab Emirates, Oman, and other Gulf states. GST does not observe daylight saving time. Dubai and Abu Dhabi, major international business and tourism hubs, operate on GST.

Best time to call between AST and United Arab Emirates

With a +8h offset there is no overlap inside a normal 9 AM – 5 PM day. United Arab Emirates opens at 9:00 AM GST, which is 5:00 PM in AST, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

AST and United Arab Emirates have no shared working hours because of the +8h gap. Teams need to alternate early starts or rely on asynchronous handovers.

AST is 8 hours ahead of United Arab Emirates (AST UTC-04:00 → GST UTC+04:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

AST

☀ Currently in DST

Standard: UTC-04:00 · DST: UTC-03:00

Clocks fall back on Sun, Nov 1, 2026

United Arab Emirates

Does not observe DST

Frequently Asked Questions

What is the time difference between AST and United Arab Emirates?

AST (AST, UTC-04:00) is 8 hours ahead of United Arab Emirates (GST, UTC+04:00). The gap is currently +8h.

How do I convert AST time to United Arab Emirates time?

Add +8h to AST local time. For example, 9:00 AM in AST is 5:00 PM in United Arab Emirates.

What time is it in United Arab Emirates right now?

United Arab Emirates uses GST at UTC+04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +8h offset from AST.

What is the best time to call United Arab Emirates from AST?

There is no shared working-hours window because of the +8h gap. The closest option is 1:00 PM in AST, which is 9:00 PM in United Arab Emirates.

Which is ahead, AST or United Arab Emirates?

AST is 8 hours ahead of United Arab Emirates. When it is 12:00 PM in AST it is 8:00 PM in United Arab Emirates.

Do AST and United Arab Emirates use different time zones?

AST uses AST at UTC-04:00, while United Arab Emirates (United Arab Emirates) uses GST at UTC+04:00. The IANA identifiers are America/Halifax and Asia/Dubai.

Does daylight saving time affect the AST–United Arab Emirates difference?

Neither zone observes daylight saving time, so the +8h offset between AST and United Arab Emirates is fixed all year.

Which other cities share AST's time zone?

AST also covers Halifax, San Juan, Santo Domingo, Caracas, La Paz, Fredericton, Charlottetown.

Which countries use AST, AST's zone?

AST is used in Canada (Atlantic provinces), Puerto Rico, US Virgin Islands, Dominican Republic, Venezuela, Bolivia, Barbados, Trinidad and Tobago.

Is there a day difference between AST and United Arab Emirates?

Not normally. The +8h gap only pushes the date over for late-evening times.

What is the time difference between AST and United Arab Emirates?

United Arab Emirates is +8h from AST.

What timezone is AST in?

AST operates on its local timezone.

What timezone is United Arab Emirates in?

United Arab Emirates operates on its local timezone.

Which countries use AST (Atlantic Standard Time)?

AST is used in Canada (Atlantic provinces), Puerto Rico, US Virgin Islands, Dominican Republic, Venezuela, Bolivia, and 2 more countries.

Does AST observe daylight saving time?

Yes, AST switches to ADT during summer months.

What are some interesting facts about AST?

Puerto Rico uses AST year-round and does not observe DST. AST is 1 hour ahead of EST.

Which cities are in the GST timezone?

Major cities in the GST timezone include Dubai, Abu Dhabi, Muscat, Baku, Tbilisi.

What is the UTC offset for GST?

Gulf Standard Time (GST) is at UTC+04:00.

What should I know about the GST timezone?

Dubai uses GST year-round with no daylight saving time. GST is 9 hours ahead of EST and 4 hours ahead of GMT.

When is it midnight in AST, what time is it in United Arab Emirates?

When it is 12:00 AM (midnight) in AST (AST), it is +8h later in United Arab Emirates (GST).