London to New Delhi Time Conversion
Converting London time to New Delhi time is essential for UK-India business, travel, and connecting with the large Indian diaspora. India operates on Indian Standard Time (IST), which is UTC+5:30 year-round, while London alternates between Greenwich Mean Time (GMT, UTC+0) in winter and British Summer Time (BST, UTC+1) in summer. This creates a time gap of 4.5 hours during BST and 5.5 hours during GMT. Use the live dual-clock converter above to see the current time in both cities, or visit Time.now for a full world clock.
The London to New Delhi Time Difference
London (UTC+0/+1) and New Delhi (UTC+5:30) have a fixed offset of 5.5 hours ahead during GMT and 4.5 hours ahead during BST. India does not observe daylight saving time, so the difference changes only when London switches clocks. During British Summer Time (BST), London is 4.5 hours behind New Delhi. During Greenwich Mean Time (GMT), London is 5.5 hours behind New Delhi.
London to New Delhi Conversion Table
| London (GMT/BST) | New Delhi (IST) | Notes |
|---|---|---|
| 00:00 (midnight) GMT | 05:30 | Early morning in Delhi |
| 06:00 GMT | 11:30 | Late morning in Delhi |
| 09:00 GMT | 14:30 | Afternoon in Delhi |
| 12:00 GMT | 17:30 | Evening in Delhi |
| 15:00 GMT | 20:30 | Night in Delhi |
| 18:00 GMT | 23:30 | Late night in Delhi |
| 21:00 GMT | 02:30 (next day) | Early morning next day |
| 09:00 BST | 13:30 | Afternoon in Delhi |
| 12:00 BST | 16:30 | Late afternoon in Delhi |
| 18:00 BST | 22:30 | Late evening in Delhi |
Best Times to Schedule Calls
The best overlap for business calls is between 09:00-12:00 London time (GMT/BST) and 13:30-17:30 Delhi time (IST). During BST, the window shifts slightly earlier. Avoid calling Delhi between 22:00-06:00 IST (overnight). For personal calls, late afternoon London time (15:00-17:00) works well for evening chats in Delhi.
| London Time | Delhi Time | Suitability |
|---|---|---|
| 08:00 GMT | 13:30 | Good for business |
| 10:00 GMT | 15:30 | Ideal overlap |
| 12:00 GMT | 17:30 | End of business day |
| 15:00 GMT | 20:30 | Evening personal call |
Frequently Asked Questions
What is the time difference between London and New Delhi?
The time difference is 4.5 hours during BST (summer) and 5.5 hours during GMT (winter). New Delhi is always ahead.
Does India observe daylight saving time?
No, India does not use DST. Indian Standard Time (IST) is UTC+5:30 year-round.
When does London switch between GMT and BST?
London switches to BST on the last Sunday of March and back to GMT on the last Sunday of October. In 2026, BST starts 29 March and ends 25 October.
What is the best time to call New Delhi from London?
The best time is between 09:00 and 12:00 London time, which corresponds to 13:30-17:30 in Delhi. This overlaps with the Indian business day.
How do I convert London time to New Delhi time quickly?
Add 4.5 hours during BST or 5.5 hours during GMT. For example, 10:00 BST becomes 14:30 IST. Use the live converter above for an instant check.
For other time conversions, see London To New York Time, London To Los Angeles Time, or London To Sydney Time. Learn more about UK time zones at Greenwich Mean Time (GMT) and British Summer Time (BST), or understand the difference at GMT vs UTC. For precise local times, visit time in London, or explore worldwide times at TimeRight.Now, CurrentTime.now, European time and date, and US time and date.