Vietnam to United States time conversion
United States is 11 hours behind Vietnam. After the next clock change (): United States is 12 hours behind Vietnam.
Time difference with your location
Vietnam is 7 hours ahead of UTC. Compare with your local time →
Choose a date and time
Choose the local time in Vietnam to convert it to United States on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · Vietnam → United States
This table converts each hour in Vietnam to United States on 2026-10-21.
- Working hours
- Outside working hours
- Night hours
| Vietnam | United States | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 13:001:00 PM -1 day | |
| 01:001:00 AM | 14:002:00 PM -1 day | |
| 02:002:00 AM | 15:003:00 PM -1 day | |
| 03:003:00 AM | 16:004:00 PM -1 day | |
| 04:004:00 AM | 17:005:00 PM -1 day | |
| 05:005:00 AM | 18:006:00 PM -1 day | |
| 06:006:00 AM | 19:007:00 PM -1 day | |
| 07:007:00 AM | 20:008:00 PM -1 day | |
| 08:008:00 AM | 21:009:00 PM -1 day | |
| 09:009:00 AM | 22:0010:00 PM -1 day | |
| 10:0010:00 AM | 23:0011:00 PM -1 day | |
| 11:0011:00 AM | 00:0012:00 AM | |
| 12:0012:00 PM | 01:001:00 AM | |
| 13:001:00 PM | 02:002:00 AM | |
| 14:002:00 PM | 03:003:00 AM | |
| 15:003:00 PM | 04:004:00 AM | |
| 16:004:00 PM | 05:005:00 AM | |
| 17:005:00 PM | 06:006:00 AM | |
| 18:006:00 PM | 07:007:00 AM | |
| 19:007:00 PM | 08:008:00 AM | |
| 20:008:00 PM | 09:009:00 AM | |
| 21:009:00 PM | 10:0010:00 AM | |
| 22:0010:00 PM | 11:0011:00 AM | |
| 23:0011:00 PM | 12:0012:00 PM |
Quick conversion examples
These examples convert local times in Vietnam to United States on 2026-10-21.
Conversion formula: United States = Vietnam − 11h · Vietnam − 12h.
| Vietnam | United States |
|---|---|
| 6:00 AM Vietnam | = 7:00 PM United States (-1 day) |
| 7:00 AM Vietnam | = 8:00 PM United States (-1 day) |
| 8:00 AM Vietnam | = 9:00 PM United States (-1 day) |
| 9:00 AM Vietnam | = 10:00 PM United States (-1 day) |
| 10:00 AM Vietnam | = 11:00 PM United States (-1 day) |
| 12:00 PM Vietnam | = 1:00 AM United States |
| 3:00 PM Vietnam | = 4:00 AM United States |
| 5:00 PM Vietnam | = 6:00 AM United States |
| 6:00 PM Vietnam | = 7:00 AM United States |
| 8:00 PM Vietnam | = 9:00 AM United States |
Overlapping meeting hours
The 08:00–18:00 working days in Vietnam and United States do not overlap on 2026-10-21.
Clock changes on both sides, 2026–2028
Vietnam and United States have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | Vietnam | United States |
|---|---|---|
| 2026 | No clock changes; UTC+7 all year. | · 02:00 → 03:00 · 02:00 → 01:00 |
| 2027 | No clock changes; UTC+7 all year. | · 02:00 → 03:00 · 02:00 → 01:00 |
| 2028 | No clock changes; UTC+7 all year. | · 02:00 → 03:00 · 02:00 → 01:00 |
At the start of 2026, United States is 12 hours behind Vietnam. The difference changes during the following periods.
- From 2026-03-08 14:00 Vietnam until 2026-11-01 13:00 Vietnam, United States is 11 hours behind Vietnam.
- From 2027-03-14 14:00 Vietnam until 2027-11-07 13:00 Vietnam, United States is 11 hours behind Vietnam.
- From 2028-03-12 14:00 Vietnam until 2028-11-05 13:00 Vietnam, United States is 11 hours behind Vietnam.
Frequently asked questions
What time is 9 AM Vietnam in United States?
9:00 AM Vietnam = 10:00 PM United States (-1 day), using UTC+7 and UTC-4. Choose a date above for the seasonal local time.
Does the time difference between Vietnam and United States change during the year?
Yes. During 2026–2028: United States is 12 hours behind Vietnam; United States is 11 hours behind Vietnam. The clock-change table gives the dates for both sides.
How do I tell whether it is day or night in United States?
Read the United States clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.
What is the best time to call between Vietnam and United States?
The 08:00–18:00 working days in Vietnam and United States do not overlap.
What is the time difference between Vietnam and United States now?
Right now, United States is 11 hours behind Vietnam. Conversion formula: United States = Vietnam − 11h · Vietnam − 12h.