Vietnam Time to IST Converter
IST is 1 hour 30 minutes behind ICT. 9:00 AM ICT = 7:30 AM IST.
IST is 1 hour 30 minutes behind ICT. To convert Vietnam Time to IST, subtract 1 hour 30 minutes from the Vietnam Time time: 9:00 AM ICT = 7:30 AM IST.
Vietnam Time (Vietnam time) is used in Vietnam. IST (India Time) is used in India and Sri Lanka (UTC+5:30, no daylight saving time).
IST here means India Standard Time, not Irish or Israel Standard Time.
Vietnam Time to IST time conversion table
Vietnam Time to IST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Vietnam Time | IST |
|---|---|
| 12:00 AM | 10:30 PM−1 |
| 1:00 AM | 11:30 PM−1 |
| 2:00 AM | 12:30 AM |
| 3:00 AM | 1:30 AM |
| 4:00 AM | 2:30 AM |
| 5:00 AM | 3:30 AM |
| 6:00 AM | 4:30 AM |
| 7:00 AM | 5:30 AM |
| Vietnam Time | IST |
|---|---|
| 8:00 AM | 6:30 AM |
| 9:00 AM | 7:30 AM |
| 10:00 AM | 8:30 AM |
| 11:00 AM | 9:30 AM |
| 12:00 PM | 10:30 AM |
| 1:00 PM | 11:30 AM |
| 2:00 PM | 12:30 PM |
| 3:00 PM | 1:30 PM |
| Vietnam Time | IST |
|---|---|
| 4:00 PM | 2:30 PM |
| 5:00 PM | 3:30 PM |
| 6:00 PM | 4:30 PM |
| 7:00 PM | 5:30 PM |
| 8:00 PM | 6:30 PM |
| 9:00 PM | 7:30 PM |
| 10:00 PM | 8:30 PM |
| 11:00 PM | 9:30 PM |
Conversion table from Vietnam Time to IST for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in IST, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert Vietnam Time to IST
Subtract 1 hour 30 minutes from the Vietnam Time time to get IST.
Example: 9:00 AM ICT = 7:30 AM IST.
Across midnight: 1:00 AM ICT = 11:30 PM IST (previous day). The date changes, so always check the day as well as the hour.
Time difference between Vietnam Time and IST
The time difference between Vietnam Time and IST is 1 hour 30 minutes all year – IST is behind ICT.
Vietnam Time and IST during daylight saving time
- Vietnam Time does not observe daylight saving time; it stays on UTC+7 all year.
- IST does not observe daylight saving time; it stays on UTC+5:30 all year.
Best time for a meeting between Vietnam Time and IST
Vietnam Time and IST share 6 hours 30 minutes of the 9 AM–5 PM working day. Any time between 10:30 AM and 5:00 PM ICT lands between 9:00 AM and 3:30 PM IST, inside working hours for both.
Vietnam Time to IST FAQ
What is the time difference between Vietnam Time and IST?
IST is 1 hour 30 minutes behind ICT all year. 9:00 AM ICT = 7:30 AM IST.
What is 9 AM Vietnam Time in IST?
9:00 AM ICT is 7:30 AM IST.
What is 12 PM (noon) Vietnam Time in IST?
12:00 PM ICT is 10:30 AM IST.
Is IST ahead of or behind Vietnam Time?
IST is 1 hour 30 minutes behind ICT, so it is earlier in IST than in Vietnam Time.
Does Vietnam Time change for daylight saving time?
No. Vietnam Time stays on the same offset all year, so conversions never shift for daylight saving time.
Does IST change for daylight saving time?
No. IST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between Vietnam Time and IST?
Vietnam Time and IST share 6 hours 30 minutes of the 9 AM–5 PM working day. Any time between 10:30 AM and 5:00 PM ICT lands between 9:00 AM and 3:30 PM IST, inside working hours for both.
Related conversions
Convert IST to Vietnam Time
Convert Vietnam Time to other time zones
Convert other time zones to IST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.