Time difference between United States and Vietnam: 11 hours
United States is 11 hours behind Vietnam
Difference by time zone
This country spans multiple time zones, so the summary above uses the main zone. The table below shows the difference for each zone.
| United States — Time zone | Vietnam — Time zone | Difference vs Vietnam |
|---|---|---|
| Eastern Time (New York) | Vietnam | −11 hours |
| Central Time (Chicago) | Vietnam | −12 hours |
| Mountain Time (Denver) | Vietnam | −13 hours |
| Pacific Time (Los Angeles) | Vietnam | −14 hours |
| Alaska Time | Vietnam | −15 hours |
| Hawaii Time | Vietnam | −17 hours |
Best time for a call or meeting
United States 07:00–11:00 = Vietnam 18:00–22:00 United States 20:00–22:00 = Vietnam 07:00–09:00
Business hours never overlap, so these are the hours when both cities are awake (7:00–22:00).
Convert a specific time
Hour-by-hour conversion
| United States | Vietnam |
|---|---|
| 00:00 | 11:00 |
| 01:00 | 12:00 |
| 02:00 | 13:00 |
| 03:00 | 14:00 |
| 04:00 | 15:00 |
| 05:00 | 16:00 |
| 06:00 | 17:00 |
| 07:00 | 18:00 |
| 08:00 | 19:00 |
| 09:00 | 20:00 |
| 10:00 | 21:00 |
| 11:00 | 22:00 |
| 12:00 | 23:00 |
| 13:00 | 00:00 |
| 14:00 | 01:00 |
| 15:00 | 02:00 |
| 16:00 | 03:00 |
| 17:00 | 04:00 |
| 18:00 | 05:00 |
| 19:00 | 06:00 |
| 20:00 | 07:00 |
| 21:00 | 08:00 |
| 22:00 | 09:00 |
| 23:00 | 10:00 |
Daylight saving time can change the difference by season. Shown values reflect the current offset.
Frequently asked questions
How many hours is the time difference between United States and Vietnam?
United States is 11 hours behind Vietnam. When it is 12:00 noon in United States, it is 23:00 in Vietnam.
Does daylight saving time affect the difference?
Yes. One or both places observe daylight saving time, so the difference changes with the season. This page shows the current difference.
What is the best time for a call or meeting?
United States 07:00–11:00 = Vietnam 18:00–22:00 / United States 20:00–22:00 = Vietnam 07:00–09:00. Business hours never overlap, so these are the hours when both cities are awake (7:00–22:00).
How many time zones does United States have?
This page covers 6 time zones in United States, using Eastern Time (New York) as the reference. See the table above for each zone.