GMT to IST Converter
IST is 5 hours 30 minutes ahead of GMT all year.
IST to GMT insteadTime difference between GMT and IST
IST is 5 hours 30 minutes ahead of GMT all year.
Neither side uses daylight saving time, so the difference never changes.
GMT to IST conversion table
| GMT | ISTAll year |
|---|---|
| 12 AM | 5:30 AM |
| 1 AM | 6:30 AM |
| 2 AM | 7:30 AM |
| 3 AM | 8:30 AM |
| 4 AM | 9:30 AM |
| 5 AM | 10:30 AM |
| 6 AM | 11:30 AM |
| 7 AM | 12:30 PM |
| 8 AM | 1:30 PM |
| 9 AM | 2:30 PM |
| 10 AM | 3:30 PM |
| 11 AM | 4:30 PM |
| 12 PM | 5:30 PM |
| 1 PM | 6:30 PM |
| 2 PM | 7:30 PM |
| 3 PM | 8:30 PM |
| 4 PM | 9:30 PM |
| 5 PM | 10:30 PM |
| 6 PM | 11:30 PM |
| 7 PM | 12:30 AM+1 day |
| 8 PM | 1:30 AM+1 day |
| 9 PM | 2:30 AM+1 day |
| 10 PM | 3:30 AM+1 day |
| 11 PM | 4:30 AM+1 day |
Best time to meet
Working hours (9 AM – 5 PM) overlap for 2 hours 30 minutes: 9 AM – 11:30 AM GMT (2:30 PM – 5 PM IST). That window is the best time for calls and meetings.
Frequently asked questions
What time is it in IST when it's 9 AM in GMT?
2:30 PM. IST is 5 hours 30 minutes ahead of GMT.
How many hours is IST ahead of GMT?
5 hours 30 minutes, all year round. Neither side uses daylight saving time, so the difference never changes.
Does GMT use daylight saving time?
No. Greenwich Mean Time stays at UTC+0 all year.
Does IST use daylight saving time?
No. India Standard Time stays at UTC+5:30 all year.
When is the best time to schedule a meeting between GMT and IST?
Working hours (9 AM – 5 PM) overlap for 2 hours 30 minutes: 9 AM – 11:30 AM GMT (2:30 PM – 5 PM IST). 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.