United Arab Emirates to AST
-8hUnited Arab Emirates
GSTSOURCEAST
ASTGreen rows indicate typical business hours (9 AM - 5 PM)
GST and AST on the World Map
The map below highlights the GST (Gulf Standard Time) and AST (Atlantic Standard Time) timezone regions across the globe.
GST – Gulf Standard Time
UTC+04:00Gulf Standard Time (GST) is used in the UAE, Oman, and other Gulf states, 4 hours ahead of UTC.
- •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.
AST – Atlantic Standard Time
UTC-04:00Atlantic Standard Time (AST) is the time zone for the Canadian Atlantic provinces and the Caribbean, 4 hours behind UTC.
- •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.
United Arab Emirates to AST Time Difference – Complete Guide
United Arab Emirates runs on Gulf Standard Time (GST) at UTC+04:00. AST runs on Atlantic Standard Time (AST) at UTC-04:00. That puts United Arab Emirates 8 hours behind AST — a difference of -8h at the current offsets.
In practice, when it is 9:00 AM in United Arab Emirates it is 1:00 AM in AST. Midnight in United Arab Emirates is 4:00 PM in AST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
United Arab Emirates to AST time conversion table
| United Arab Emirates (GST) | AST (AST) | Day |
|---|---|---|
| 12:00 AM | 4:00 PM | previous day |
| 6:00 AM | 10:00 PM | previous day |
| 7:00 AM | 11:00 PM | previous day |
| 8:00 AM | 12:00 AM | same day |
| 9:00 AM | 1:00 AM | same day |
| 12:00 PM | 4:00 AM | same day |
| 3:00 PM | 7:00 AM | same day |
| 5:00 PM | 9:00 AM | same day |
| 6:00 PM | 10:00 AM | same day |
| 9:00 PM | 1:00 PM | same day |
Why people convert United Arab Emirates to AST time
- Scheduling a call from United Arab Emirates to AST: a 10:00 AM start in United Arab Emirates lands at 2:00 AM in AST, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -8h gap: United Arab Emirates and AST 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 AST is 1:00 AM in United Arab Emirates.
- Keeping family and friends in sync: knowing that 8:00 PM in United Arab Emirates is 12:00 PM in AST makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM GST" 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 United Arab Emirates takes the early slot, the next week AST does.
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.
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.
Best time to call between United Arab Emirates and AST
With a -8h offset there is no overlap inside a normal 9 AM – 5 PM day. AST opens at 9:00 AM AST, which is 1:00 AM in United Arab Emirates, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
United Arab Emirates and AST have no shared working hours because of the -8h gap. Teams need to alternate early starts or rely on asynchronous handovers.
United Arab Emirates is 8 hours behind AST (GST UTC+04:00 → AST 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
United Arab Emirates
Does not observe DST
AST
☀ Currently in DST
Standard: UTC-04:00 · DST: UTC-03:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between United Arab Emirates and AST?
United Arab Emirates (GST, UTC+04:00) is 8 hours behind AST (AST, UTC-04:00). The gap is currently -8h.
How do I convert United Arab Emirates time to AST time?
Add -8h to United Arab Emirates local time. For example, 9:00 AM in United Arab Emirates is 1:00 AM in AST.
What time is it in AST right now?
AST uses AST 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 United Arab Emirates.
What is the best time to call AST from United Arab Emirates?
There is no shared working-hours window because of the -8h gap. The closest option is 1:00 PM in United Arab Emirates, which is 5:00 AM in AST.
Which is behind, United Arab Emirates or AST?
United Arab Emirates is 8 hours behind AST. When it is 12:00 PM in United Arab Emirates it is 4:00 AM in AST.
Do United Arab Emirates and AST use different time zones?
United Arab Emirates (United Arab Emirates) uses GST at UTC+04:00, while AST uses AST at UTC-04:00. The IANA identifiers are Asia/Dubai and America/Halifax.
Does daylight saving time affect the United Arab Emirates–AST difference?
Neither zone observes daylight saving time, so the -8h offset between United Arab Emirates and AST is fixed all year.
Which other cities share United Arab Emirates's time zone?
GST also covers Dubai, Abu Dhabi, Muscat, Baku, Tbilisi.
Which countries use GST, United Arab Emirates's zone?
GST is used in UAE, Oman, Georgia, Azerbaijan, Mauritius.
Is there a day difference between United Arab Emirates and AST?
Not normally. The -8h gap only pushes the date over the previous day.
What is the time difference between United Arab Emirates and AST?
AST is -8h from United Arab Emirates.
What timezone is United Arab Emirates in?
United Arab Emirates operates on its local timezone.
What timezone is AST in?
AST operates on its local timezone.
Which countries use GST (Gulf Standard Time)?
GST is used in UAE, Oman, Georgia, Azerbaijan, Mauritius.
Does GST observe daylight saving time?
No, GST does not observe daylight saving time and remains at UTC+04:00 year-round.
What are some interesting 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.
Which cities are in the AST timezone?
Major cities in the AST timezone include Halifax, San Juan, Santo Domingo, Caracas, La Paz, Fredericton, Charlottetown.
What is the UTC offset for AST?
Atlantic Standard Time (AST) is at UTC-04:00. During daylight saving time, it shifts to ADT.
What should I know about the AST timezone?
Puerto Rico uses AST year-round and does not observe DST. AST is 1 hour ahead of EST.
When is it midnight in United Arab Emirates, what time is it in AST?
When it is 12:00 AM (midnight) in United Arab Emirates (GST), it is -8h later in AST (AST).
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See every conversion from United Arab Emirates →·See every conversion from AST →