Vietnam to Tokyo
+2hVietnam
ICTSOURCETokyo
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
ICT and JST on the World Map
The map below highlights the ICT (Indochina Time) and JST (Japan 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.
JST – Japan Standard Time
UTC+09:00Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.
- •Japan does not observe daylight saving time.
- •Tokyo is the most populous metropolitan area in the world.
- •The Tokyo Stock Exchange operates from 9:00 AM to 3:00 PM JST.
- •JST is 14 hours ahead of EST and 9 hours ahead of GMT.
About Tokyo
WikipediaTokyo operates on Japan Standard Time (JST), which is 14 hours ahead of New York. As Asia's largest financial hub, Tokyo trading hours are crucial for global markets.
The Tokyo subway system moves approximately 8.7 million passengers daily.
Vietnam vs Tokyo: Offsets, DST and Best Call Times
Vietnam runs on Indochina Time (ICT) at UTC+07:00. Tokyo runs on Japan Standard Time (JST) at UTC+09:00. That puts Vietnam 2 hours ahead of Tokyo — a difference of +2h at the current offsets.
In practice, when it is 9:00 AM in Vietnam it is 11:00 AM in Tokyo. Midnight in Vietnam is 2:00 AM in Tokyo. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Vietnam to Tokyo time conversion table
| Vietnam (ICT) | Tokyo (JST) | Day |
|---|---|---|
| 12:00 AM | 2:00 AM | same day |
| 6:00 AM | 8:00 AM | same day |
| 7:00 AM | 9:00 AM | same day |
| 8:00 AM | 10:00 AM | same day |
| 9:00 AM | 11:00 AM | same day |
| 12:00 PM | 2:00 PM | same day |
| 3:00 PM | 5:00 PM | same day |
| 5:00 PM | 7:00 PM | same day |
| 6:00 PM | 8:00 PM | same day |
| 9:00 PM | 11:00 PM | same day |
Why people convert Vietnam to Tokyo time
- Scheduling a call from Vietnam to Tokyo: a 10:00 AM start in Vietnam lands at 12:00 PM in Tokyo, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Vietnam and Tokyo are inside the 9-to-5 working day between 9:00 AM and 3:00 PM ICT time (11:00 AM–5:00 PM JST). That is roughly 6 hours of usable overlap.
- Coordinating a Vietnam-based team with Tokyo 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 +2h gap is not.
- Block 9:00 AM–3:00 PM ICT as the recurring meeting window if you work primarily from Vietnam and need Tokyo colleagues present.
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 JST (Japan Standard Time)
Japan Standard Time (JST) is the standard time zone for all of Japan. Japan does not observe daylight saving time. JST is 9 hours ahead of UTC and 14 hours ahead of EST. The Tokyo Stock Exchange, the world's third largest by market capitalization, operates on JST. South Korea uses the same offset (KST) but it is a distinct time zone.
Best time to call between Vietnam and Tokyo
Both Vietnam and Tokyo sit inside the 9 AM – 5 PM working day between 9:00 AM–3:00 PM ICT, which is 11:00 AM–5:00 PM JST. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Vietnam and Tokyo share 6 hours of working-hours overlap (9:00 AM–3:00 PM ICT), so scheduling a live meeting is straightforward.
Vietnam is 2 hours ahead of Tokyo (ICT UTC+07:00 → JST UTC+09:00). The shared working window is 9:00 AM–3:00 PM ICT. Remember to re-check around daylight-saving transitions.
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 Tokyo?
Vietnam (ICT, UTC+07:00) is 2 hours ahead of Tokyo (JST, UTC+09:00). The gap is currently +2h.
How do I convert Vietnam time to Tokyo time?
Add +2h to Vietnam local time. For example, 9:00 AM in Vietnam is 11:00 AM in Tokyo.
What time is it in Tokyo right now?
Tokyo uses JST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +2h offset from Vietnam.
What is the best time to call Tokyo from Vietnam?
Call between 9:00 AM and 3:00 PM ICT — that maps to 11:00 AM–5:00 PM JST and keeps both parties inside the working day.
Which is ahead, Vietnam or Tokyo?
Vietnam is 2 hours ahead of Tokyo. When it is 12:00 PM in Vietnam it is 2:00 PM in Tokyo.
Do Vietnam and Tokyo use different time zones?
Vietnam (Vietnam) uses ICT at UTC+07:00, while Tokyo (Japan) uses JST at UTC+09:00. The IANA identifiers are Asia/Ho_Chi_Minh and Asia/Tokyo.
Does daylight saving time affect the Vietnam–Tokyo difference?
Neither zone observes daylight saving time, so the +2h offset between Vietnam and Tokyo 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 Tokyo?
Not normally. The +2h gap only pushes the date over for late-evening times.
What is the time difference between Vietnam and Tokyo?
Tokyo is +2h from Vietnam.
What timezone is Vietnam in?
Vietnam operates on its local timezone.
What timezone is Tokyo in?
Tokyo operates on Japan Standard Time (JST), which is 14 hours ahead of New York. As Asia's largest financial hub, Tokyo trading hours are crucial for global markets.
What are the business hours in Tokyo?
Standard business hours in Tokyo are 9:00 AM - 6:00 PM JST.
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 JST timezone?
Major cities in the JST timezone include Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka.
What is the UTC offset for JST?
Japan Standard Time (JST) is at UTC+09:00.
What should I know about the JST timezone?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
When is it midnight in Vietnam, what time is it in Tokyo?
When it is 12:00 AM (midnight) in Vietnam (ICT), it is +2h later in Tokyo (JST).
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