NST to Vietnam
+10h 30mNST
NSTSOURCEVietnam
ICTGreen rows indicate typical business hours (9 AM - 5 PM)
NST and ICT on the World Map
The map below highlights the NST (Newfoundland Standard Time) and ICT (Indochina Time) timezone regions across the globe.
NST – Newfoundland Standard Time
UTC-03:30Newfoundland Standard Time (NST) is a unique half-hour offset time zone in Canada, 3.5 hours behind UTC.
- •NST is one of only a few half-hour offset time zones in the world.
- •Newfoundland joined Canada in 1949 and kept its unique time zone.
- •St. John's is the easternmost city in North America.
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.
Comparing Time Zones: NST and Vietnam
NST runs on Newfoundland Standard Time (NST) at UTC-03:30. Vietnam runs on Indochina Time (ICT) at UTC+07:00. That puts NST 10 hours 30 minutes ahead of Vietnam — a difference of +10h 30m at the current offsets.
In practice, when it is 9:00 AM in NST it is 7:30 PM in Vietnam. Midnight in NST is 10:30 AM in Vietnam. Neither zone observes daylight saving time, so the offset between them stays constant all year.
NST to Vietnam time conversion table
| NST (NST) | Vietnam (ICT) | Day |
|---|---|---|
| 12:00 AM | 10:30 AM | same day |
| 6:00 AM | 4:30 PM | same day |
| 7:00 AM | 5:30 PM | same day |
| 8:00 AM | 6:30 PM | same day |
| 9:00 AM | 7:30 PM | same day |
| 12:00 PM | 10:30 PM | same day |
| 3:00 PM | 1:30 AM | next day |
| 5:00 PM | 3:30 AM | next day |
| 6:00 PM | 4:30 AM | next day |
| 9:00 PM | 7:30 AM | next day |
Why people convert NST to Vietnam time
- Scheduling a call from NST to Vietnam: a 10:00 AM start in NST lands at 8:30 PM in Vietnam, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +10h 30m gap: NST and Vietnam 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 Vietnam is 7:30 PM in NST.
- Keeping family and friends in sync: knowing that 8:00 PM in NST is 6:30 AM in Vietnam makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM NST" is unambiguous; "3 PM" across a +10h 30m gap is not.
- With a +10h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week NST takes the early slot, the next week Vietnam does.
About NST (Newfoundland Standard Time)
Newfoundland Standard Time (NST) is one of the few half-hour offset time zones in the world. It covers the island of Newfoundland in Canada and is 30 minutes ahead of Atlantic Standard Time. This unique offset exists because Newfoundland was an independent country until 1949.
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.
Best time to call between NST and Vietnam
With a +10h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. Vietnam opens at 9:00 AM ICT, which is 7:30 PM in NST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
NST and Vietnam have no shared working hours because of the +10h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
NST is 10 hours 30 minutes ahead of Vietnam (NST UTC-03:30 → ICT UTC+07:00). 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
NST
☀ Currently in DST
Standard: UTC-03:30 · DST: UTC-02:30
Clocks fall back on Sun, Nov 1, 2026
Vietnam
Does not observe DST
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 NST and Vietnam?
NST (NST, UTC-03:30) is 10 hours 30 minutes ahead of Vietnam (ICT, UTC+07:00). The gap is currently +10h 30m.
How do I convert NST time to Vietnam time?
Add +10h 30m to NST local time. For example, 9:00 AM in NST is 7:30 PM in Vietnam.
What time is it in Vietnam right now?
Vietnam uses ICT at UTC+07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +10h 30m offset from NST.
What is the best time to call Vietnam from NST?
There is no shared working-hours window because of the +10h 30m gap. The closest option is 1:00 PM in NST, which is 11:30 PM in Vietnam.
Which is ahead, NST or Vietnam?
NST is 10 hours 30 minutes ahead of Vietnam. When it is 12:00 PM in NST it is 10:30 PM in Vietnam.
Do NST and Vietnam use different time zones?
NST uses NST at UTC-03:30, while Vietnam (Vietnam) uses ICT at UTC+07:00. The IANA identifiers are America/St_Johns and Asia/Ho_Chi_Minh.
Does daylight saving time affect the NST–Vietnam difference?
Neither zone observes daylight saving time, so the +10h 30m offset between NST and Vietnam is fixed all year.
Which other cities share NST's time zone?
NST also covers St. John's, Corner Brook, Mount Pearl.
Which countries use NST, NST's zone?
NST is used in Canada (Newfoundland).
Is there a day difference between NST and Vietnam?
Not normally. The +10h 30m gap only pushes the date over for late-evening times.
What is the time difference between NST and Vietnam?
Vietnam is +10h 30m from NST.
What timezone is NST in?
NST operates on its local timezone.
What timezone is Vietnam in?
Vietnam operates on its local timezone.
Which countries use NST (Newfoundland Standard Time)?
NST is used in Canada (Newfoundland).
Does NST observe daylight saving time?
Yes, NST switches to NDT during summer months.
What are some interesting facts about NST?
NST is one of only a few half-hour offset time zones in the world. Newfoundland joined Canada in 1949 and kept its unique time zone.
Which cities are in the ICT timezone?
Major cities in the ICT timezone include Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
What is the UTC offset for ICT?
Indochina Time (ICT) is at UTC+07:00.
What should I know about the ICT timezone?
Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.
When is it midnight in NST, what time is it in Vietnam?
When it is 12:00 AM (midnight) in NST (NST), it is +10h 30m later in Vietnam (ICT).
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