Time Comparison
Comparing time between Kolkata and London? Find the best time to call, schedule meetings, and understand the exact time difference.
Kolkata is 4.5 hours behind London. Review the overlapping business hours below to ensure seamless cross-timezone collaboration.
--:--:--
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Kolkata, India
Asia/Kolkata
Standard Time
UTC+5:30--:--:--
Â
London, United Kingdom
Europe/London
Active
UTC+1Time Difference: 4.5 hours behind
24-Hour Timeline Comparison
Kolkata
5.5
8.5
11.5
14.5
17.5
20.5
23.5
2.5
London
01
04
07
10
13
16
19
22
Working Hours Overlap
Working hours (9-17)
Daytime (6-22)
Night (22-6)
Overlap
Current hour
Best time to call from Kolkata to London
Kolkata
13.5:00
↕
London
09:00
Kolkata
14.5:00
↕
London
10:00
Kolkata
15.5:00
↕
London
11:00
Kolkata
16.5:00
↕
London
12:00
Overlap Hours
Business Hours (9AM-5PM)
| UTC | Kolkata | London |
|---|---|---|
| 00:00 | 5.5:00 | 01:00 |
| 01:00 | 6.5:00 | 02:00 |
| 02:00 | 7.5:00 | 03:00 |
| 03:00 | 8.5:00 | 04:00 |
| 04:00 | 9.5:00 | 05:00 |
| 05:00 | 10.5:00 | 06:00 |
| 06:00 | 11.5:00 | 07:00 |
| 07:00 | 12.5:00 | 08:00 |
| 08:00 | 13.5:00 | 09:00 |
| 09:00 | 14.5:00 | 10:00 |
| 10:00 | 15.5:00 | 11:00 |
| 11:00 | 16.5:00 | 12:00 |
| 12:00 | 17.5:00 | 13:00 |
| 13:00 | 18.5:00 | 14:00 |
| 14:00 | 19.5:00 | 15:00 |
| 15:00 | 20.5:00 | 16:00 |
| 16:00 | 21.5:00 | 17:00 |
| 17:00 | 22.5:00 | 18:00 |
| 18:00 | 23.5:00 | 19:00 |
| 19:00 | 0.5:00 | 20:00 |
| 20:00 | 1.5:00 | 21:00 |
| 21:00 | 2.5:00 | 22:00 |
| 22:00 | 3.5:00 | 23:00 |
| 23:00 | 4.5:00 | 00:00 |