GST to IST converter
IST is 1 h 30 min ahead of GST all year.
GST to IST table
For 2 July 2026, when IST is 1 h 30 min ahead of GST. Other dates: see the table on the right.
| GST | IST |
|---|---|
| 12:00 AM | 1:30 AM |
| 1:00 AM | 2:30 AM |
| 2:00 AM | 3:30 AM |
| 3:00 AM | 4:30 AM |
| 4:00 AM | 5:30 AM |
| 5:00 AM | 6:30 AM |
| 6:00 AM | 7:30 AM |
| 7:00 AM | 8:30 AM |
| 8:00 AM | 9:30 AM |
| 9:00 AM | 10:30 AM |
| 10:00 AM | 11:30 AM |
| 11:00 AM | 12:30 PM |
| 12:00 PM | 1:30 PM |
| 1:00 PM | 2:30 PM |
| 2:00 PM | 3:30 PM |
| 3:00 PM | 4:30 PM |
| 4:00 PM | 5:30 PM |
| 5:00 PM | 6:30 PM |
| 6:00 PM | 7:30 PM |
| 7:00 PM | 8:30 PM |
| 8:00 PM | 9:30 PM |
| 9:00 PM | 10:30 PM |
| 10:00 PM | 11:30 PM |
| 11:00 PM | 12:30 AM next day |
When the difference changes
Computed from the IANA tz database (release 2026c). Governments can change these rules; the live converter uses your browser’s own copy of the database.
| 2026: from (UTC) | until (UTC) | IST vs GST |
|---|---|---|
| 1 January 2026 | 31 December 2026 | 1 h 30 min ahead of |
| 2027: from (UTC) | until (UTC) | IST vs GST |
|---|---|---|
| 1 January 2027 | 31 December 2027 | 1 h 30 min ahead of |
GST: Gulf Standard Time · GST time now
United Arab Emirates and Oman
IST: India Standard Time · IST time now
IST can also mean Irish Standard Time or Israel Standard Time. This page means India (Asia/Kolkata), which has one zone and no daylight saving time.
Related converters
Questions
What is the time difference between GST and IST?
IST is 1 h 30 min ahead of GST all year.
What is 9 am GST in IST?
9:00 am GST is 10:30 AM IST, on dates when the usual difference applies. Use the converter above for any specific date.
Which GST does this page use?
Gulf Standard Time, the clock time in United Arab Emirates and Oman (IANA zone Asia/Dubai).
Which IST does this page use?
IST can also mean Irish Standard Time or Israel Standard Time. This page means India (Asia/Kolkata), which has one zone and no daylight saving time.