Thailand 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 Thailand Time to IST, subtract 1 hour 30 minutes from the Thailand Time time: 9:00 AM ICT = 7:30 AM IST.
Thailand Time (Thailand time) is used in Thailand. 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.
Thailand Time to IST time conversion table
Thailand Time to IST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Thailand Time | IST | Day |
|---|---|---|
| 12:00 AM ICT | 10:30 PM IST | previous day |
| 1:00 AM ICT | 11:30 PM IST | previous day |
| 2:00 AM ICT | 12:30 AM IST | night |
| 3:00 AM ICT | 1:30 AM IST | night |
| 4:00 AM ICT | 2:30 AM IST | night |
| 5:00 AM ICT | 3:30 AM IST | night |
| 6:00 AM ICT | 4:30 AM IST | night |
| 7:00 AM ICT | 5:30 AM IST | night |
| 8:00 AM ICT | 6:30 AM IST | — |
| 9:00 AM ICT | 7:30 AM IST | — |
| 10:00 AM ICT | 8:30 AM IST | — |
| 11:00 AM ICT | 9:30 AM IST | work hours |
| 12:00 PM ICT | 10:30 AM IST | work hours |
| 1:00 PM ICT | 11:30 AM IST | work hours |
| 2:00 PM ICT | 12:30 PM IST | work hours |
| 3:00 PM ICT | 1:30 PM IST | work hours |
| 4:00 PM ICT | 2:30 PM IST | work hours |
| 5:00 PM ICT | 3:30 PM IST | — |
| 6:00 PM ICT | 4:30 PM IST | — |
| 7:00 PM ICT | 5:30 PM IST | — |
| 8:00 PM ICT | 6:30 PM IST | — |
| 9:00 PM ICT | 7:30 PM IST | — |
| 10:00 PM ICT | 8:30 PM IST | — |
| 11:00 PM ICT | 9:30 PM IST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Thailand Time to IST
Subtract 1 hour 30 minutes from the Thailand 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 Thailand Time and IST
The time difference between Thailand Time and IST is 1 hour 30 minutes all year – IST is behind ICT.
Thailand Time and IST during daylight saving time
- Thailand 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 Thailand Time and IST
Thailand 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.
Thailand Time to IST FAQ
What is the time difference between Thailand 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 Thailand Time in IST?
9:00 AM ICT is 7:30 AM IST.
What is 12 PM (noon) Thailand Time in IST?
12:00 PM ICT is 10:30 AM IST.
Is IST ahead of or behind Thailand Time?
IST is 1 hour 30 minutes behind ICT, so it is earlier in IST than in Thailand Time.
Does Thailand Time change for daylight saving time?
No. Thailand 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 Thailand Time and IST?
Thailand 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 Thailand Time
Convert Thailand Time to other time zones
Convert other time zones to IST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.