ICT to Halifax
-10hICT
ICTSOURCEHalifax
ADTGreen rows indicate typical business hours (9 AM - 5 PM)
ICT and ADT on the World Map
The map below highlights the ICT (Indochina Time) and ADT (Atlantic Standard Time) timezone regions across the globe.
ICT – Indochina Time
UTC+07:00Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.
- •Bangkok is one of the most visited cities in the world.
- •ICT is 12 hours ahead of EST.
- •Thailand, Vietnam, and Cambodia all share ICT.
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.
About Halifax
WikipediaHalifax operates on Atlantic Time (AST/ADT), UTC-4. As Canada's major Atlantic port and closest city to Europe, Halifax bridges North American and European business.
Halifax harbors the second largest natural ice-free harbor in the world.
ICT to Halifax Time Difference – Complete Guide
ICT runs on Indochina Time (ICT) at UTC+07:00. Halifax runs on Atlantic Daylight Time (ADT) at UTC-03:00, also currently on daylight saving time. That puts ICT 10 hours behind Halifax — a difference of -10h at the current offsets.
In practice, when it is 9:00 AM in ICT it is 11:00 PM in Halifax on the previous day. Midnight in ICT is 2:00 PM in Halifax.Halifax observes daylight saving time while ICT does not, so the gap narrows or widens by an hour part of the year.
ICT to Halifax time conversion table
| ICT (ICT) | Halifax (ADT) | Day |
|---|---|---|
| 12:00 AM | 2:00 PM | previous day |
| 6:00 AM | 8:00 PM | previous day |
| 7:00 AM | 9:00 PM | previous day |
| 8:00 AM | 10:00 PM | previous day |
| 9:00 AM | 11:00 PM | previous day |
| 12:00 PM | 2:00 AM | same day |
| 3:00 PM | 5:00 AM | same day |
| 5:00 PM | 7:00 AM | same day |
| 6:00 PM | 8:00 AM | same day |
| 9:00 PM | 11:00 AM | same day |
Why people convert ICT to Halifax time
- Scheduling a call from ICT to Halifax: a 10:00 AM start in ICT lands at 12:00 AM in Halifax, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -10h gap: ICT and Halifax 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 Halifax is 11:00 PM in ICT.
- Booking travel or deliveries: tracking Halifax local time against ICT keeps pickup windows and arrival estimates honest across the -10h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM ICT" is unambiguous; "3 PM" across a -10h gap is not.
- With a -10h gap there is no shared 9-to-5 window, so alternate the early start: one week ICT takes the early slot, the next week Halifax does.
- Halifax: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
About ICT (Indochina Time)
Indochina Time (ICT) is used across Southeast Asia including Vietnam, Thailand, Laos, and Cambodia. Indonesia (Western time, WIB) also uses UTC+07:00. ICT does not observe daylight saving time.
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 ICT and Halifax
With a -10h offset there is no overlap inside a normal 9 AM – 5 PM day. Halifax opens at 9:00 AM ADT, which is 11:00 PM in ICT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
ICT and Halifax have no shared working hours because of the -10h gap. Teams need to alternate early starts or rely on asynchronous handovers.
ICT is 10 hours behind Halifax (ICT UTC+07:00 → ADT UTC-03:00). 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
ICT
Does not observe DST
Halifax
☀ 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 ICT and Halifax?
ICT (ICT, UTC+07:00) is 10 hours behind Halifax (ADT, UTC-03:00). The gap is currently -10h.
How do I convert ICT time to Halifax time?
Add -10h to ICT local time. For example, 9:00 AM in ICT is 11:00 PM in Halifax (previous day).
What time is it in Halifax right now?
Halifax uses ADT at UTC-03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -10h offset from ICT.
What is the best time to call Halifax from ICT?
There is no shared working-hours window because of the -10h gap. The closest option is 1:00 PM in ICT, which is 3:00 AM in Halifax.
Which is behind, ICT or Halifax?
ICT is 10 hours behind Halifax. When it is 12:00 PM in ICT it is 2:00 AM in Halifax.
Do ICT and Halifax use different time zones?
ICT uses ICT at UTC+07:00, while Halifax (Canada) uses ADT at UTC-03:00. The IANA identifiers are Asia/Bangkok and America/Halifax.
Does daylight saving time affect the ICT–Halifax difference?
Yes at the moment: Halifax is on daylight saving time and ICT is not, so the -10h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share ICT's time zone?
ICT also covers Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
Which countries use ICT, ICT's zone?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Is there a day difference between ICT and Halifax?
Not normally. The -10h gap only pushes the date over the previous day.
What is the time difference between ICT and Halifax?
Halifax is -10h from ICT.
What timezone is ICT in?
ICT operates on its local timezone.
What timezone is Halifax in?
Halifax operates on Atlantic Time (AST/ADT), UTC-4. As Canada's major Atlantic port and closest city to Europe, Halifax bridges North American and European business.
What are the business hours in Halifax?
Standard business hours in Halifax are 9:00 AM - 5:00 PM AST.
Which countries use ICT (Indochina Time)?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Does ICT observe daylight saving time?
No, ICT does not observe daylight saving time and remains at UTC+07:00 year-round.
What are some interesting facts about ICT?
Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.
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 ICT, what time is it in Halifax?
When it is 12:00 AM (midnight) in ICT (ICT), it is -10h later in Halifax (AST).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More ICT time conversions
- ict to bangkok
- ict to thailand
- ict to new york
- ict to london
- ict to dubai
- ict to tokyo
- ict to singapore
- ict to sydney
- ict to los angeles
- ict to paris
- ict to delhi
- ict to mumbai
- ict to berlin
- ict to hong kong
- ict to toronto
- ict to kathmandu
- new york to ict
- london to ict
- dubai to ict
- tokyo to ict
- singapore to ict
- sydney to ict
- los angeles to ict
- paris to ict
- delhi to ict
- mumbai to ict
- berlin to ict
- hong kong to ict
- toronto to ict
- kathmandu to ict
See every conversion from ICT →·See every conversion from Halifax →