Convert Greenwich Mean Time to India Standard Time
| GMT | IST |
|---|---|
| 12:00 AM | 4:00 AM |
| 3:00 AM | 7:00 AM |
| 6:00 AM | 10:00 AM |
| 9:00 AM | 1:00 PM |
| 12:00 PM | 4:00 PM |
| 3:00 PM | 7:00 PM |
| 6:00 PM | 10:00 PM |
| 9:00 PM | 1:00 AM |
Greenwich Mean Time (GMT) is UTC+0 and India Standard Time (IST) is UTC+5:30. The exact difference can vary due to Daylight Saving Time changes.
Use our converter above to find the exact time. Enter 9:00 in the GMT field to see the corresponding IST time, accounting for current DST rules.
Greenwich Mean Time (GMT) is based on the Europe/London timezone. DST observance depends on local regulations. Our converter automatically accounts for current DST rules.
When it is 9:00 AM GMT, it is 1.5:00 PM IST. India Standard Time (IST, UTC+5:30) is 5.5 hours ahead of Greenwich Mean Time (GMT, UTC+0). Your working-hours overlap window is 9:00 AM–11.5:00 AM GMT (2.5:00 PM–5:00 PM IST).
| GMT | IST |
|---|---|
| 12:00 AM | 4.5:00 AM |
| 3:00 AM | 7.5:00 AM |
| 6:00 AM | 10.5:00 AM |
| 9:00 AM | 1.5:00 PM |
| 12:00 PM | 4.5:00 PM |
| 3:00 PM | 7.5:00 PM |
| 6:00 PM | 10.5:00 PM |
| 9:00 PM | 1.5:00 AM (+1 day) |
Greenwich Mean Time (GMT): London, Manchester, Dublin, Edinburgh.
India Standard Time (IST): Mumbai, Delhi, Bangalore, Chennai, Kolkata, Colombo.
GMT is UTC+0 and IST is UTC+5:30, a difference of 5.5 hours. IST is ahead of GMT. This difference can shift by an hour in either direction during Daylight Saving Time transitions — if one zone observes DST and the other doesn't, the offset narrows or widens for part of the year.
Assuming a 9:00 AM – 5:00 PM workday on each side, your working-hours overlap window is 9:00 am–11.5:00 am gmt (2.5:00 pm–5:00 pm ist). To visualize this instantly for any pair of cities, use the visual meeting planner or the timezone overlap finder — both highlight the green overlap window on a live timeline.
Greenwich Mean Time (GMT) is based on the Europe/London IANA timezone. DST observance depends on the jurisdiction — for example, most of the continental US switches between standard and daylight time, while India, Japan, and most of Southeast Asia do not observe DST at all. WorldClock.lol uses the authoritative IANA timezone database, so every conversion automatically accounts for the correct DST rules on the date you're converting.
When it is 9:00 AM in Greenwich Mean Time (GMT, UTC+0), it is 1.5:00 PM in India Standard Time (IST). For other times of day, scan the conversion table above or drop into the interactive converter to pick an exact minute. The converter handles both standard and daylight variants correctly.