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London to Kolkata time
Use TimeInOne to convert any local time in London, United Kingdom to the corresponding time in Kolkata, India.
The conversion uses Europe/London and Asia/Kolkata, including date-specific seasonal clock changes.
City Time Converter
London to Kolkata Time Converter
Convert London, United Kingdom time to Kolkata, India. Compare local times, working hours and recommended meeting slots.
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Locations
About London and Kolkata
Compare location details, time zones, populations and coordinates for both cities.
City information
London
United Kingdom
- Country
- United Kingdom
- GB
- Population
- 8,961,989
- Time zone
- Europe/London
- Coordinates
- 51.5085° N
- 0.1257° W
City information
Kolkata
India
- Country
- India
- IN
- Population
- 4,631,392
- Time zone
- Asia/Kolkata
- Coordinates
- 22.5626° N
- 88.3630° E
Need the reverse conversion?
Convert Kolkata time back to London.
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FAQ
London to Kolkata time FAQ
Common questions about the time difference, daylight-saving rules and meeting hours between London and Kolkata.
What is the time difference between London and Kolkata?
Kolkata is 4.5 hours ahead of London. The exact difference can change during the year when one location changes its clocks before the other.
Is Kolkata ahead of London?
Yes. Kolkata is currently 4.5 hours ahead of London.
What time is 9:00 AM in London in Kolkata?
When it is 9:00 AM in London, it is 1:30:00 PM in Kolkata on the current reference date. The result can differ during another part of the year because of daylight-saving changes.
Do London and Kolkata observe daylight saving time?
London, United Kingdom uses seasonal daylight-saving changes in its time-zone rules. Kolkata, India does not normally use a seasonal daylight-saving offset. TimeInOne uses the IANA zones Europe/London and Asia/Kolkata for date-specific conversions.
What is the best meeting time between London and Kolkata?
The next recommended working-hours overlap is 9:00 AM in London and 1:30 PM in Kolkata, on Mon, Aug 17.