IST to GMT converter
GMT is 5 h 30 min behind IST all year.
IST to GMT table
For 2 July 2026, when GMT is 5 h 30 min behind IST. Other dates: see the table on the right.
| IST | GMT |
|---|---|
| 12:00 AM | 6:30 PM prev. day |
| 1:00 AM | 7:30 PM prev. day |
| 2:00 AM | 8:30 PM prev. day |
| 3:00 AM | 9:30 PM prev. day |
| 4:00 AM | 10:30 PM prev. day |
| 5:00 AM | 11:30 PM prev. day |
| 6:00 AM | 12:30 AM |
| 7:00 AM | 1:30 AM |
| 8:00 AM | 2:30 AM |
| 9:00 AM | 3:30 AM |
| 10:00 AM | 4:30 AM |
| 11:00 AM | 5:30 AM |
| 12:00 PM | 6:30 AM |
| 1:00 PM | 7:30 AM |
| 2:00 PM | 8:30 AM |
| 3:00 PM | 9:30 AM |
| 4:00 PM | 10:30 AM |
| 5:00 PM | 11:30 AM |
| 6:00 PM | 12:30 PM |
| 7:00 PM | 1:30 PM |
| 8:00 PM | 2:30 PM |
| 9:00 PM | 3:30 PM |
| 10:00 PM | 4:30 PM |
| 11:00 PM | 5:30 PM |
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) | GMT vs IST |
|---|---|---|
| 1 January 2026 | 31 December 2026 | 5 h 30 min behind |
| 2027: from (UTC) | until (UTC) | GMT vs IST |
|---|---|---|
| 1 January 2027 | 31 December 2027 | 5 h 30 min behind |
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.
GMT: Greenwich Mean Time · GMT time now
GMT here means the fixed UTC+0 offset. The UK only uses GMT in winter; in summer London is on BST (UTC+1).
Related converters
Questions
What is the time difference between IST and GMT?
GMT is 5 h 30 min behind IST all year.
What is 9 am IST in GMT?
9:00 am IST is 3:30 AM GMT, on dates when the usual difference applies. Use the converter above for any specific date.
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.
Which GMT does this page use?
GMT here means the fixed UTC+0 offset. The UK only uses GMT in winter; in summer London is on BST (UTC+1).