Japan to Vietnam time conversion
Vietnam is 2 hours behind Japan.
Time difference with your location
Japan is 9 hours ahead of UTC. Compare with your local time →
Choose a date and time
Choose the local time in Japan to convert it to Vietnam on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · Japan → Vietnam
This table converts each hour in Japan to Vietnam on 2026-10-21.
- Working hours
- Outside working hours
- Night hours
| Japan | Vietnam | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 22:0010:00 PM -1 day | |
| 01:001:00 AM | 23:0011:00 PM -1 day | |
| 02:002:00 AM | 00:0012:00 AM | |
| 03:003:00 AM | 01:001:00 AM | |
| 04:004:00 AM | 02:002:00 AM | |
| 05:005:00 AM | 03:003:00 AM | |
| 06:006:00 AM | 04:004:00 AM | |
| 07:007:00 AM | 05:005:00 AM | |
| 08:008:00 AM | 06:006:00 AM | |
| 09:009:00 AM | 07:007:00 AM | |
| 10:0010:00 AM | 08:008:00 AM | ✓ |
| 11:0011:00 AM | 09:009:00 AM | ✓ |
| 12:0012:00 PM | 10:0010:00 AM | ✓ |
| 13:001:00 PM | 11:0011:00 AM | ✓ |
| 14:002:00 PM | 12:0012:00 PM | ✓ |
| 15:003:00 PM | 13:001:00 PM | ✓ |
| 16:004:00 PM | 14:002:00 PM | ✓ |
| 17:005:00 PM | 15:003:00 PM | ✓ |
| 18:006:00 PM | 16:004:00 PM | |
| 19:007:00 PM | 17:005:00 PM | |
| 20:008:00 PM | 18:006:00 PM | |
| 21:009:00 PM | 19:007:00 PM | |
| 22:0010:00 PM | 20:008:00 PM | |
| 23:0011:00 PM | 21:009:00 PM |
Quick conversion examples
These examples convert local times in Japan to Vietnam on 2026-10-21.
Conversion formula: Vietnam = Japan − 2h.
| Japan | Vietnam |
|---|---|
| 6:00 AM Japan | = 4:00 AM Vietnam |
| 7:00 AM Japan | = 5:00 AM Vietnam |
| 8:00 AM Japan | = 6:00 AM Vietnam |
| 9:00 AM Japan | = 7:00 AM Vietnam |
| 10:00 AM Japan | = 8:00 AM Vietnam |
| 12:00 PM Japan | = 10:00 AM Vietnam |
| 3:00 PM Japan | = 1:00 PM Vietnam |
| 5:00 PM Japan | = 3:00 PM Vietnam |
| 6:00 PM Japan | = 4:00 PM Vietnam |
| 8:00 PM Japan | = 6:00 PM Vietnam |
Overlapping meeting hours
The 08:00–18:00 working day in Japan and Vietnam overlaps for 8 hours on 2026-10-21.
- Shared working hours
- 10:00–18:00 Japan · 08:00–16:00 Vietnam
Clock changes on both sides, 2026–2028
Japan and Vietnam have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | Japan | Vietnam |
|---|---|---|
| 2026 | No clock changes; UTC+9 all year. | No clock changes; UTC+7 all year. |
| 2027 | No clock changes; UTC+9 all year. | No clock changes; UTC+7 all year. |
| 2028 | No clock changes; UTC+9 all year. | No clock changes; UTC+7 all year. |
The difference between Japan and Vietnam stays constant throughout 2026–2028: Vietnam is 2 hours behind Japan.
Frequently asked questions
What time is 9 AM Japan in Vietnam?
9:00 AM Japan = 7:00 AM Vietnam, using UTC+9 and UTC+7. Choose a date above for the seasonal local time.
Does the time difference between Japan and Vietnam change during the year?
No. Throughout 2026–2028: Vietnam is 2 hours behind Japan.
How do I tell whether it is day or night in Vietnam?
Read the Vietnam 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 Japan and Vietnam?
The shared 08:00–18:00 working window is 10:00–18:00 Japan / 08:00–16:00 Vietnam, a total of 8 hours.
What is the time difference between Japan and Vietnam now?
Right now, Vietnam is 2 hours behind Japan. Conversion formula: Vietnam = Japan − 2h.