India (IST) is 5 hours 30 minutes ahead of London (GMT). During British Summer Time (BST), India is 4 hours 30 minutes ahead. Convert any time between London and India instantly with live clocks.
Common London (GMT) to India (IST) conversions with working hours indication.
| London (GMT) | India (IST) | Status |
|---|---|---|
| 6:00 AM | 11:30 AM | IST only |
| 8:00 AM | 1:30 PM | Both working |
| 9:00 AM | 2:30 PM | Both working |
| 10:00 AM | 3:30 PM | Best window |
| 11:00 AM | 4:30 PM | Best window |
| 12:00 PM | 5:30 PM | Best window |
| 1:00 PM | 6:30 PM | India winding down |
| 2:00 PM | 7:30 PM | London only |
| 4:00 PM | 9:30 PM | London only |
| 6:00 PM | 11:30 PM | India late |
| 8:00 PM | 1:30 AM +1 | India asleep |
London uses GMT (Greenwich Mean Time, UTC+0) in winter (late October to late March) and BST (British Summer Time, UTC+1) in summer (late March to late October). London and the rest of the UK observe daylight saving time.
India uses IST (India Standard Time, UTC+5:30) year-round. India does not observe daylight saving time, so IST stays at UTC+5:30 all year.
The total offset between London and India is +5 hours 30 minutes during GMT (winter) and +4 hours 30 minutes during BST (summer). This is one of the easiest UK-international time gaps to work with for remote teams.
The London-India time gap is the most favorable of any major international pairing. The best call window is 10:00 AM to 1:00 PM GMT, which lands at 3:30 to 6:30 PM IST. Both sides are well within business hours — late morning/early afternoon in the UK, late afternoon/early evening in India.
Even outside the best window, the gap is small enough that most working-hours overlaps are practical. 8:00 AM GMT (1:30 PM IST) and 2:00 PM GMT (7:30 PM IST) both work for many teams.
The UK observes Daylight Saving Time, but India does not. This means the London-India gap changes twice a year:
The UK clocks change on the last Sunday in March (forward) and last Sunday in October (back). Your usual 10 AM London call with India will shift by 1 hour in IST around these dates.