IST to Ho Chi Minh City time conversion
Ho Chi Minh City is 1 hour 30 minutes ahead of IST.
Time difference with your location
IST is 5 hours 30 minutes ahead of UTC. Compare with your local time →
Choose a date and time
Choose the local time in IST to convert it to Ho Chi Minh City on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · IST → Ho Chi Minh City
This table converts each hour in IST to Ho Chi Minh City on 2026-10-21.
- Working hours
- Outside working hours
- Night hours
| IST | Ho Chi Minh City | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 01:301:30 AM | |
| 01:001:00 AM | 02:302:30 AM | |
| 02:002:00 AM | 03:303:30 AM | |
| 03:003:00 AM | 04:304:30 AM | |
| 04:004:00 AM | 05:305:30 AM | |
| 05:005:00 AM | 06:306:30 AM | |
| 06:006:00 AM | 07:307:30 AM | |
| 07:007:00 AM | 08:308:30 AM | |
| 08:008:00 AM | 09:309:30 AM | ✓ |
| 09:009:00 AM | 10:3010:30 AM | ✓ |
| 10:0010:00 AM | 11:3011:30 AM | ✓ |
| 11:0011:00 AM | 12:3012:30 PM | ✓ |
| 12:0012:00 PM | 13:301:30 PM | ✓ |
| 13:001:00 PM | 14:302:30 PM | ✓ |
| 14:002:00 PM | 15:303:30 PM | ✓ |
| 15:003:00 PM | 16:304:30 PM | ✓ |
| 16:004:00 PM | 17:305:30 PM | ✓ |
| 17:005:00 PM | 18:306:30 PM | |
| 18:006:00 PM | 19:307:30 PM | |
| 19:007:00 PM | 20:308:30 PM | |
| 20:008:00 PM | 21:309:30 PM | |
| 21:009:00 PM | 22:3010:30 PM | |
| 22:0010:00 PM | 23:3011:30 PM | |
| 23:0011:00 PM | 00:3012:30 AM +1 day |
Quick conversion examples
These examples use IST (UTC+5:30) and Ho Chi Minh City (UTC+7); choosing a date applies the local clock changes.
Conversion formula: Ho Chi Minh City = IST + 1h30.
| IST | Ho Chi Minh City |
|---|---|
| 6:00 AM IST | = 7:30 AM Ho Chi Minh City |
| 7:00 AM IST | = 8:30 AM Ho Chi Minh City |
| 8:00 AM IST | = 9:30 AM Ho Chi Minh City |
| 9:00 AM IST | = 10:30 AM Ho Chi Minh City |
| 10:00 AM IST | = 11:30 AM Ho Chi Minh City |
| 12:00 PM IST | = 1:30 PM Ho Chi Minh City |
| 3:00 PM IST | = 4:30 PM Ho Chi Minh City |
| 5:00 PM IST | = 6:30 PM Ho Chi Minh City |
| 6:00 PM IST | = 7:30 PM Ho Chi Minh City |
| 8:00 PM IST | = 9:30 PM Ho Chi Minh City |
Overlapping meeting hours
The 08:00–18:00 working day in IST and Ho Chi Minh City overlaps for 8 hours 30 minutes on 2026-10-21.
- Shared working hours
- 08:00–16:30 IST · 09:30–18:00 Ho Chi Minh City
Clock changes on both sides, 2026–2028
IST and Ho Chi Minh City have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | IST | Ho Chi Minh City |
|---|---|---|
| 2026 | No clock changes; UTC+5:30 all year. | No clock changes; UTC+7 all year. |
| 2027 | No clock changes; UTC+5:30 all year. | No clock changes; UTC+7 all year. |
| 2028 | No clock changes; UTC+5:30 all year. | No clock changes; UTC+7 all year. |
The difference between IST and Ho Chi Minh City stays constant throughout 2026–2028: Ho Chi Minh City is 1 hour 30 minutes ahead of IST.
Frequently asked questions
What time is 9 AM IST in Ho Chi Minh City?
9:00 AM IST = 10:30 AM Ho Chi Minh City, using UTC+5:30 and UTC+7. Choose a date above for the seasonal local time.
Does the time difference between IST and Ho Chi Minh City change during the year?
No. Throughout 2026–2028: Ho Chi Minh City is 1 hour 30 minutes ahead of IST.
How do I tell whether it is day or night in Ho Chi Minh City?
Read the Ho Chi Minh City 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 IST and Ho Chi Minh City?
The shared 08:00–18:00 working window is 08:00–16:30 IST / 09:30–18:00 Ho Chi Minh City, a total of 8 hours 30 minutes.
What is the time difference between IST and Ho Chi Minh City now?
Right now, Ho Chi Minh City is 1 hour 30 minutes ahead of IST. Conversion formula: Ho Chi Minh City = IST + 1h30.