Convert Greenwich Mean Time (GMT) to India Standard Time (IST), with daylight saving applied for the exact date you pick.
Tue, Oct 27
Tue, Oct 27 Same day
| Su | Mo | Tu | We | Th | Fr | Sa |
|---|
GMT 9 to 5 IST 9 to 5
IST is 5 hours 30 minutes ahead of GMT.
The same conversion works for every city on these clocks, such as Greenwich to India and Greenwich to Delhi.
Shaded areas follow the official zone boundaries, so a country split across zones is split here too. Hover or tap a region for its local time.
Every hour of Tuesday, October 27, 2026, side by side. Days with a clock change show 23 or 25 rows.
Shaded rows fall inside working hours in both places.
| Greenwich (GMT) | New Delhi (IST) | Working hours |
|---|---|---|
| 12:00 AM | 5:30 AM | |
| 1:00 AM | 6:30 AM | |
| 2:00 AM | 7:30 AM | |
| 3:00 AM | 8:30 AM | |
| 4:00 AM | 9:30 AM | |
| 5:00 AM | 10:30 AM | |
| 6:00 AM | 11:30 AM | |
| 7:00 AM | 12:30 PM | |
| 8:00 AM | 1:30 PM | |
| 9:00 AM | 2:30 PM | Both working |
| 10:00 AM | 3:30 PM | Both working |
| 11:00 AM | 4:30 PM | Both working |
| 12:00 PM | 5:30 PM | |
| 1:00 PM | 6:30 PM | |
| 2:00 PM | 7:30 PM | |
| 3:00 PM | 8:30 PM | |
| 4:00 PM | 9:30 PM | |
| 5:00 PM | 10:30 PM | |
| 6:00 PM | 11:30 PM | |
| 7:00 PM | 12:30 AM next day | |
| 8:00 PM | 1:30 AM next day | |
| 9:00 PM | 2:30 AM next day | |
| 10:00 PM | 3:30 AM next day | |
| 11:00 PM | 4:30 AM next day |
Every hour of the Greenwich Mean Time day, plus the common half hours, and their IST equivalents.
| Greenwich Mean Time | IST 5 h 30 min ahead, all year |
|---|---|
| 12:00 AM | 5:30 AM |
| 1:00 AM | 6:30 AM |
| 2:00 AM | 7:30 AM |
| 3:00 AM | 8:30 AM |
| 4:00 AM | 9:30 AM |
| 5:00 AM | 10:30 AM |
| 6:00 AM | 11:30 AM |
| 7:00 AM | 12:30 PM |
| 8:00 AM | 1:30 PM |
| 9:00 AM | 2:30 PM |
| 9:30 AM | 3:00 PM |
| 10:00 AM | 3:30 PM |
| 10:30 AM | 4:00 PM |
| 11:00 AM | 4:30 PM |
| 11:30 AM | 5:00 PM |
| 12:00 PM | 5:30 PM |
| 12:30 PM | 6:00 PM |
| 1:00 PM | 6:30 PM |
| 1:30 PM | 7:00 PM |
| 2:00 PM | 7:30 PM |
| 2:30 PM | 8:00 PM |
| 3:00 PM | 8:30 PM |
| 3:30 PM | 9:00 PM |
| 4:00 PM | 9:30 PM |
| 4:30 PM | 10:00 PM |
| 5:00 PM | 10:30 PM |
| 5:30 PM | 11:00 PM |
| 6:00 PM | 11:30 PM |
| 7:00 PM | 12:30 AM (next day) |
| 8:00 PM | 1:30 AM (next day) |
| 9:00 PM | 2:30 AM (next day) |
| 10:00 PM | 3:30 AM (next day) |
| 11:00 PM | 4:30 AM (next day) |
Neither Greenwich Mean Time nor India Standard Time changes its clocks in the next 18 months.
Greenwich Mean Time is UTC+0 and, for everyday purposes, the same clock as UTC. It does not shift for daylight saving time.
The UK uses GMT only in winter and British Summer Time (BST, UTC+1) in summer. For London time, use the UK time pages.
India Standard Time is UTC+5:30 all year. The whole country keeps a single clock, and India has not observed daylight saving time since the 1940s, so IST never changes.
IST can also stand for Irish Standard Time or Israel Standard Time. On this site IST always means India Standard Time (Asia/Kolkata).
India Standard Time is 5 hours 30 minutes ahead of Greenwich Mean Time all year.
India uses India Standard Time. India Standard Time is 5 hours 30 minutes ahead of Greenwich Mean Time all year. Type any GMT time into the GMT to IST converter to see the India time for any date.
9:00 AM GMT is 2:30 PM IST.
12:00 PM GMT is 5:30 PM IST.
10:00 AM GMT is 3:30 PM IST.
5:00 PM GMT is 10:30 PM IST.
Yes. India Standard Time is 5 hours 30 minutes ahead of Greenwich Mean Time all year.
Working days of 9 AM to 5 PM overlap from 9:00 AM to 11:30 AM GMT, which is 2:30 PM to 5:00 PM IST.
Neither zone observes daylight saving time, so the difference never changes.
The UK uses GMT only in winter and British Summer Time (BST, UTC+1) in summer. For London time, use the UK time pages.
IST can also stand for Irish Standard Time or Israel Standard Time. On this site IST always means India Standard Time (Asia/Kolkata).