The time difference between Ho Chi Minh City and Sydney is 4 hours. When it is 12:00 noon in Ho Chi Minh City, it is 16:00 in Sydney. Ho Chi Minh City uses the Asia/Ho_Chi_Minh time zone (UTC+7), while Sydney uses Australia/Sydney (UTC+11).
| Detail | Ho Chi Minh City | Sydney |
|---|---|---|
| Time Zone ID | Asia/Ho_Chi_Minh | Australia/Sydney |
| UTC Offset | UTC+7 | UTC+11 |
| Abbreviation | +07 | AEDT |
| DST Active | No | Yes — currently observing |
| Country | Vietnam | Australia |
| Region | Asia | Oceania |
There are 4 overlapping business hours between Ho Chi Minh City and Sydney (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:
Use this table to quickly convert any hour from Ho Chi Minh City time to Sydney time. Rows highlighted in green indicate overlapping business hours in both cities.
| Ho Chi Minh City | Sydney | |
|---|---|---|
| 00:00 | 04:00 | Night |
| 01:00 | 05:00 | Night |
| 02:00 | 06:00 | Night |
| 03:00 | 07:00 | Night |
| 04:00 | 08:00 | Night |
| 05:00 | 09:00 | Night |
| 06:00 | 10:00 | |
| 07:00 | 11:00 | |
| 08:00 | 12:00 | |
| 09:00 | 13:00 | Overlap |
| 10:00 | 14:00 | Overlap |
| 11:00 | 15:00 | Overlap |
| 12:00 | 16:00 | Overlap |
| 13:00 | 17:00 | |
| 14:00 | 18:00 | |
| 15:00 | 19:00 | |
| 16:00 | 20:00 | |
| 17:00 | 21:00 | |
| 18:00 | 22:00 | |
| 19:00 | 23:00 | |
| 20:00 | 00:00 (+1 day) | |
| 21:00 | 01:00 (+1 day) | |
| 22:00 | 02:00 (+1 day) | Night |
| 23:00 | 03:00 (+1 day) | Night |
Sydney is currently observing daylight saving time, while Ho Chi Minh City is on standard time. When Sydney switches back to standard time, the difference between these two cities will shift by 1 hour.
The time difference is 4 hours. Sydney is 4 hours ahead of Ho Chi Minh City.
Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.
The best window is between 09:00 and 13:00 Ho Chi Minh City time, which corresponds to 13:00–17:00 in Sydney. Both sides fall within normal business hours.
Add 4 hours to Ho Chi Minh City time to get Sydney time. Use the hour-by-hour table above for a quick reference.
For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.