Time difference between London and Mumbai
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Mumbai is 5 hours 30 minutes ahead London at the start of the year; the gap changes 2 times during 2026 because the two cities change their clocks on different dates. London uses Europe/London (UTC+0 standard); Mumbai uses Asia/Kolkata (UTC+5:30 standard). The live line above shows the gap at this moment.
How this is calculated
The difference is the gap between the two cities’ UTC offsets at a given instant, taken from the IANA time zone database via the Intl API. It is recomputed live for the current moment, and for the year’s schedule below it is evaluated across every clock change in either city — which is why some pairs have several values a year and others one.
The overlap grid uses September 3, 2026 and 9-to-5 working hours; open the meeting planner for any other date or hours.
Last reviewed:
Time difference through 2026
| From | To | Mumbai is |
|---|---|---|
| January 1 | March 29 | 5 hours 30 minutes ahead London |
| March 29 | October 25 | 4 hours 30 minutes ahead London |
| October 25 | December 31 | 5 hours 30 minutes ahead London |
Clock changes in 2026
London: Sunday, March 29 at 2:00 AM local, clocks go forward (UTC+0 → UTC+1); Sunday, October 25 at 1:00 AM local, clocks go back (UTC+1 → UTC+0).
Mumbai: no daylight saving time; UTC+5:30 all year.
Working-hours overlap (September 3, 2026)
| London hour | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| London | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Mumbai | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 0⁺ | 1⁺ | 2⁺ | 3⁺ |
green inside working hours ·grey early/late · plain = night · ⁺ next day · ⁻ previous day
Frequently asked questions
How many hours ahead is Mumbai of London?
Mumbai is 5 hours 30 minutes ahead London at the start of the year; the gap changes 2 times during 2026 because the two cities change their clocks on different dates. The full schedule is in the table above.
What is the time difference between London and Mumbai in standard time?
5 hours 30 minutes ahead: London is UTC+0 and Mumbai is UTC+5:30 outside daylight saving.
Does London observe daylight saving time?
Yes. In 2026 London changes its clocks on Sunday, March 29 and Sunday, October 25.
Does Mumbai observe daylight saving time?
No. Mumbai stays on UTC+5:30 all year.
What is the best time for a meeting between London and Mumbai?
Working hours overlap when it is 9:00–13:00 in London (on September 3, 2026; use the meeting planner for another date).