IST to GMT Converter
GMT is 5 hours 30 minutes behind IST all year.
GMT to IST insteadTime difference between IST and GMT
GMT is 5 hours 30 minutes behind IST all year.
Neither side uses daylight saving time, so the difference never changes.
IST to GMT conversion table
| IST | GMTAll year |
|---|---|
| 12 AM | 6:30 PM−1 day |
| 1 AM | 7:30 PM−1 day |
| 2 AM | 8:30 PM−1 day |
| 3 AM | 9:30 PM−1 day |
| 4 AM | 10:30 PM−1 day |
| 5 AM | 11:30 PM−1 day |
| 6 AM | 12:30 AM |
| 7 AM | 1:30 AM |
| 8 AM | 2:30 AM |
| 9 AM | 3:30 AM |
| 10 AM | 4:30 AM |
| 11 AM | 5:30 AM |
| 12 PM | 6:30 AM |
| 1 PM | 7:30 AM |
| 2 PM | 8:30 AM |
| 3 PM | 9:30 AM |
| 4 PM | 10:30 AM |
| 5 PM | 11:30 AM |
| 6 PM | 12:30 PM |
| 7 PM | 1:30 PM |
| 8 PM | 2:30 PM |
| 9 PM | 3:30 PM |
| 10 PM | 4:30 PM |
| 11 PM | 5:30 PM |
Best time to meet
Working hours (9 AM – 5 PM) overlap for 2 hours 30 minutes: 2:30 PM – 5 PM IST (9 AM – 11:30 AM GMT). That window is the best time for calls and meetings.
Frequently asked questions
What time is it in GMT when it's 9 AM in IST?
3:30 AM. GMT is 5 hours 30 minutes behind IST.
How many hours is GMT behind IST?
5 hours 30 minutes, all year round. Neither side uses daylight saving time, so the difference never changes.
Does IST use daylight saving time?
No. India Standard Time stays at UTC+5:30 all year.
Does GMT use daylight saving time?
No. Greenwich Mean Time stays at UTC+0 all year.
When is the best time to schedule a meeting between IST and GMT?
Working hours (9 AM – 5 PM) overlap for 2 hours 30 minutes: 2:30 PM – 5 PM IST (9 AM – 11:30 AM GMT). That window is the best time for calls and meetings.
Which IST does this page use?
IST here means India Standard Time (UTC+5:30), not Irish or Israel Standard Time.