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