Vietnam to AKST
-16hVietnam
ICTSOURCEAKST
AKSTGreen rows indicate typical business hours (9 AM - 5 PM)
ICT and AKST on the World Map
The map below highlights the ICT (Indochina Time) and AKST (Alaska 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.
AKST – Alaska Standard Time
UTC-09:00Alaska Standard Time (AKST) is the time zone for the state of Alaska, 9 hours behind UTC.
- •Alaska is the largest US state by area but has only about 730,000 residents.
- •Anchorage is the most populous city in AKST with about 290,000 people.
- •The Aleutian Islands use HAST instead of AKST.
Vietnam to AKST Time Difference – Complete Guide
Vietnam runs on Indochina Time (ICT) at UTC+07:00. AKST runs on Alaska Standard Time (AKST) at UTC-09:00. That puts Vietnam 16 hours behind AKST — a difference of -16h at the current offsets.
In practice, when it is 9:00 AM in Vietnam it is 5:00 PM in AKST on the previous day. Midnight in Vietnam is 8:00 AM in AKST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Vietnam to AKST time conversion table
| Vietnam (ICT) | AKST (AKST) | Day |
|---|---|---|
| 12:00 AM | 8:00 AM | previous day |
| 6:00 AM | 2:00 PM | previous day |
| 7:00 AM | 3:00 PM | previous day |
| 8:00 AM | 4:00 PM | previous day |
| 9:00 AM | 5:00 PM | previous day |
| 12:00 PM | 8:00 PM | previous day |
| 3:00 PM | 11:00 PM | previous day |
| 5:00 PM | 1:00 AM | same day |
| 6:00 PM | 2:00 AM | same day |
| 9:00 PM | 5:00 AM | same day |
Why people convert Vietnam to AKST time
- Scheduling a call from Vietnam to AKST: a 10:00 AM start in Vietnam lands at 6:00 PM in AKST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -16h gap: Vietnam and AKST 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 AKST is 5:00 PM in Vietnam.
- Coordinating a Vietnam-based team with AKST 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 ICT" is unambiguous; "3 PM" across a -16h gap is not.
- With a -16h gap there is no shared 9-to-5 window, so alternate the early start: one week Vietnam takes the early slot, the next week AKST does.
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 AKST (Alaska Standard Time)
Alaska Standard Time (AKST) is used in nearly all of Alaska. Due to Alaska's vast geographic size, the Aleutian Islands use Hawaii-Aleutian Standard Time instead. During summer months, Alaska switches to Alaska Daylight Time (AKDT, UTC-08:00).
Best time to call between Vietnam and AKST
With a -16h offset there is no overlap inside a normal 9 AM – 5 PM day. AKST opens at 9:00 AM AKST, which is 5:00 PM in Vietnam, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Vietnam and AKST have no shared working hours because of the -16h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Vietnam is 16 hours behind AKST (ICT UTC+07:00 → AKST UTC-09:00). 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
Vietnam
Does not observe DST
AKST
☀ Currently in DST
Standard: UTC-09:00 · DST: UTC-08:00
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 Vietnam and AKST?
Vietnam (ICT, UTC+07:00) is 16 hours behind AKST (AKST, UTC-09:00). The gap is currently -16h.
How do I convert Vietnam time to AKST time?
Add -16h to Vietnam local time. For example, 9:00 AM in Vietnam is 5:00 PM in AKST (previous day).
What time is it in AKST right now?
AKST uses AKST at UTC-09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -16h offset from Vietnam.
What is the best time to call AKST from Vietnam?
There is no shared working-hours window because of the -16h gap. The closest option is 1:00 PM in Vietnam, which is 9:00 PM in AKST.
Which is behind, Vietnam or AKST?
Vietnam is 16 hours behind AKST. When it is 12:00 PM in Vietnam it is 8:00 PM in AKST.
Do Vietnam and AKST use different time zones?
Vietnam (Vietnam) uses ICT at UTC+07:00, while AKST uses AKST at UTC-09:00. The IANA identifiers are Asia/Ho_Chi_Minh and America/Anchorage.
Does daylight saving time affect the Vietnam–AKST difference?
Neither zone observes daylight saving time, so the -16h offset between Vietnam and AKST is fixed all year.
Which other cities share Vietnam's time zone?
ICT also covers Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
Which countries use ICT, Vietnam's zone?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Is there a day difference between Vietnam and AKST?
Sometimes. The -16h gap is large enough that 8:00 PM or later in Vietnam already falls on the in AKST.
What is the time difference between Vietnam and AKST?
AKST is -16h from Vietnam.
What timezone is Vietnam in?
Vietnam operates on its local timezone.
What timezone is AKST in?
AKST operates on its local timezone.
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 AKST timezone?
Major cities in the AKST timezone include Anchorage, Fairbanks, Juneau, Sitka, Wasilla.
What is the UTC offset for AKST?
Alaska Standard Time (AKST) is at UTC-09:00. During daylight saving time, it shifts to AKDT.
What should I know about the AKST timezone?
Alaska is the largest US state by area but has only about 730,000 residents. Anchorage is the most populous city in AKST with about 290,000 people.
When is it midnight in Vietnam, what time is it in AKST?
When it is 12:00 AM (midnight) in Vietnam (ICT), it is -16h later in AKST (AKST).
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