GMT to IST Converter – Greenwich Mean Time to Indian Standard Time
Greenwich Mean Time · London, Dublin, Lisbon, Reykjavik
Also convert in the other direction: IST to GMT →
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GMT to IST Conversion Table
Common GMT times converted to Indian Standard Time (IST)
| UK — GMT | India — IST | Day |
|---|---|---|
| 12:00 AM (midnight) GMT | 5:30 AM IST | same day |
| 6:00 AM GMT | 11:30 AM IST | same day |
| 9:00 AM GMT | 2:30 PM IST | same day |
| 12:00 PM GMT | 5:30 PM IST | same day |
| 3:00 PM GMT | 8:30 PM IST | same day |
| 6:00 PM GMT | 11:30 PM IST | same day |
| 9:00 PM GMT | 2:30 AM IST | next day |
| 11:30 PM GMT | 5:00 AM IST | next day |
India Work Hours in GMT — Meeting Planner
When India is working (9 AM – 9 PM IST), what time is it in UK?
| India — IST | UK — GMT | Day |
|---|---|---|
| 9:00 AM IST | 3:30 AM GMT | same day |
| 12:00 PM IST | 6:30 AM GMT | same day |
| 3:00 PM IST | 9:30 AM GMT | same day |
| 6:00 PM IST | 12:30 PM GMT | same day |
| 9:00 PM IST | 3:30 PM GMT | same day |
About Greenwich Mean Time and IST Time Difference
Indian Standard Time (IST) is UTC+5:30. Greenwich Mean Time (GMT) is UTC+00:00. The offset between GMT and IST is IST −5:30 hrs.
India does not observe Daylight Saving Time — IST stays at UTC+5:30 year-round. If UK observes DST, the actual offset between GMT and IST will shift by 1 hour during the DST period (typically spring–autumn in the Northern Hemisphere, autumn–spring in the Southern Hemisphere).
Major cities in Greenwich Mean Time
London, Dublin, Lisbon, Reykjavik.
Frequently Asked Questions
What is the time difference between GMT and IST?
IST (Indian Standard Time) is UTC+5:30. Greenwich Mean Time is UTC+00:00. The difference is IST −5:30 hrs. For example, 12:00 PM GMT = 5:30 PM IST.
Does India observe Daylight Saving Time?
No. India does not observe DST. IST stays at UTC+5:30 all year. The offset between GMT and IST may change if your timezone observes DST — typically shifting by 1 hour in spring and autumn.
How do I convert GMT to IST?
To convert GMT to IST: add 5.5 hours to the GMT time. Use the conversion table above or the live clock for instant DST-aware results.
India–UK Work Hour Overlap
Find shared business hours, DST impact, and daily overlap charts between India (IST) and UK.
View India–UK Overlap →