Vietnam to EDT
-11hVietnam
ICTSOURCEEDT
EDTGreen rows indicate typical business hours (9 AM - 5 PM)
ICT and EDT on the World Map
The map below highlights the ICT (Indochina Time) and EDT (Eastern Daylight 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.
EDT – Eastern Daylight Time
UTC-04:00Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.
- •EDT is observed from the second Sunday of March to the first Sunday of November.
- •During EDT, the US East Coast is only 4 hours behind London (instead of 5).
- •Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.
Comparing Time Zones: Vietnam and EDT
Vietnam runs on Indochina Time (ICT) at UTC+07:00. EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. That puts Vietnam 11 hours behind EDT — a difference of -11h at the current offsets.
In practice, when it is 9:00 AM in Vietnam it is 10:00 PM in EDT on the previous day. Midnight in Vietnam is 1:00 PM in EDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Vietnam to EDT time conversion table
| Vietnam (ICT) | EDT (EDT) | Day |
|---|---|---|
| 12:00 AM | 1:00 PM | previous day |
| 6:00 AM | 7:00 PM | previous day |
| 7:00 AM | 8:00 PM | previous day |
| 8:00 AM | 9:00 PM | previous day |
| 9:00 AM | 10:00 PM | previous day |
| 12:00 PM | 1:00 AM | same day |
| 3:00 PM | 4:00 AM | same day |
| 5:00 PM | 6:00 AM | same day |
| 6:00 PM | 7:00 AM | same day |
| 9:00 PM | 10:00 AM | same day |
Why people convert Vietnam to EDT time
- Scheduling a call from Vietnam to EDT: a 10:00 AM start in Vietnam lands at 11:00 PM in EDT the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -11h gap: Vietnam and EDT 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 EDT is 10:00 PM in Vietnam.
- Keeping family and friends in sync: knowing that 8:00 PM in Vietnam is 9:00 AM in EDT makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM ICT" is unambiguous; "3 PM" across a -11h gap is not.
- With a -11h gap there is no shared 9-to-5 window, so alternate the early start: one week Vietnam takes the early slot, the next week EDT 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 EDT (Eastern Daylight Time)
Eastern Daylight Time (EDT) is used during the summer months (second Sunday of March to the first Sunday of November) in the Eastern Time Zone. During EDT, clocks are advanced by one hour to take advantage of longer daylight hours. Not all locations in the Eastern Time Zone observe DST – Panama, Jamaica, and most of the Caribbean remain on EST year-round.
Best time to call between Vietnam and EDT
With a -11h offset there is no overlap inside a normal 9 AM – 5 PM day. EDT opens at 9:00 AM EDT, which is 10:00 PM in Vietnam, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Vietnam and EDT have no shared working hours because of the -11h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Vietnam is 11 hours behind EDT (ICT UTC+07:00 → EDT 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
Vietnam
Does not observe DST
EDT
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
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 EDT?
Vietnam (ICT, UTC+07:00) is 11 hours behind EDT (EDT, UTC-04:00). The gap is currently -11h.
How do I convert Vietnam time to EDT time?
Add -11h to Vietnam local time. For example, 9:00 AM in Vietnam is 10:00 PM in EDT (previous day).
What time is it in EDT right now?
EDT uses EDT at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -11h offset from Vietnam.
What is the best time to call EDT from Vietnam?
There is no shared working-hours window because of the -11h gap. The closest option is 1:00 PM in Vietnam, which is 2:00 AM in EDT.
Which is behind, Vietnam or EDT?
Vietnam is 11 hours behind EDT. When it is 12:00 PM in Vietnam it is 1:00 AM in EDT.
Do Vietnam and EDT use different time zones?
Vietnam (Vietnam) uses ICT at UTC+07:00, while EDT uses EDT at UTC-04:00. The IANA identifiers are Asia/Ho_Chi_Minh and America/New_York.
Does daylight saving time affect the Vietnam–EDT difference?
Neither zone observes daylight saving time, so the -11h offset between Vietnam and EDT 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 EDT?
Not normally. The -11h gap only pushes the date over the previous day.
What is the time difference between Vietnam and EDT?
EDT is -11h from Vietnam.
What timezone is Vietnam in?
Vietnam operates on its local timezone.
What timezone is EDT in?
EDT 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 EDT timezone?
Major cities in the EDT timezone include New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.
What is the UTC offset for EDT?
Eastern Daylight Time (EDT) is at UTC-04:00. During daylight saving time, it shifts to EST.
What should I know about the EDT timezone?
EDT is observed from the second Sunday of March to the first Sunday of November. During EDT, the US East Coast is only 4 hours behind London (instead of 5).
When is it midnight in Vietnam, what time is it in EDT?
When it is 12:00 AM (midnight) in Vietnam (ICT), it is -11h later in EDT (EDT).
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