Time difference: Chennai vs London
London is 4.5 hours behind Chennai.
Chennai is in the IST time zone (UTC+05:30) while London uses BST (UTC+01:00).
The offset between these two cities changes during the year because they do not share the same daylight saving schedule.
London is 4.5 hours behind Chennai.
Chennai is in the IST time zone (UTC+05:30) while London uses BST (UTC+01:00).
Because Chennai and London do not share the same daylight saving schedule, the time difference between them changes during the year.
Hour-by-hour conversion
When it's the given hour in Chennai, here are the local times elsewhere.
| Chennai | London |
|---|---|
| 00:00 | 19:30 -1 |
| 01:00 | 20:30 -1 |
| 02:00 | 21:30 -1 |
| 03:00 | 22:30 -1 |
| 04:00 | 23:30 -1 |
| 05:00 | 00:30 |
| 06:00 | 01:30 |
| 07:00 | 02:30 |
| 08:00 | 03:30 |
| 09:00 | 04:30 |
| 10:00 | 05:30 |
| 11:00 | 06:30 |
| 12:00 | 07:30 |
| 13:00 | 08:30 |
| 14:00 | 09:30 |
| 15:00 | 10:30 |
| 16:00 | 11:30 |
| 17:00 | 12:30 |
| 18:00 | 13:30 |
| 19:00 | 14:30 |
| 20:00 | 15:30 |
| 21:00 | 16:30 |
| 22:00 | 17:30 |
| 23:00 | 18:30 |
Frequently Asked Questions
London is 4.5 hours behind Chennai.
A good window is 13:30–17:00 in Chennai, which is 09:00–12:30 in London. Both sides are inside 9:00–17:00 working hours.
London is 4.5 hours behind Chennai.
Chennai and London do not share the same DST schedule, so the time offset between them changes by an hour during parts of the year.
Chennai uses Asia/Kolkata and London uses Europe/London. These are the identifiers used by operating systems and APIs to compute local time.
A good reverse window is 09:00–12:30 in London, which is 13:30–17:00 in Chennai. Both sides are inside 9:00–17:00 working hours.