London to India Time Converter

About London Time and India Time

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.

Best Time to Call India from London

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.

GMT vs BST — How Daylight Saving Affects Your Calls

The UK observes Daylight Saving Time, but India does not. This means the London-India gap changes twice a year:

• Late October to late March (GMT winter): India is 5 hours 30 minutes ahead
• Late March to late October (BST summer): India is 4 hours 30 minutes ahead

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.

Frequently Asked Questions