London to Kolkata Time Converter
Kolkata is 5 hours 30 minutes ahead of London right now. 9:00 AM in London is 2:30 PM in Kolkata.
Time now: London and Kolkata
Kolkata is 5 hours 30 minutes ahead of London right now. The gap is not fixed: it is 4 hours 30 minutes at some times of the year and 5 hours 30 minutes at others, because at least one of them changes its clocks for daylight saving time.
London and Kolkata are about 7,963 km (4,948 miles) apart in a straight line. Right now London is on GMT (UTC+00:00) and Kolkata is on IST (UTC+05:30).
London to Kolkata conversion table
Every hour of the day, using today's time difference.
| London | Kolkata |
|---|---|
| 12:00 AM | 5:30 AM |
| 1:00 AM | 6:30 AM |
| 2:00 AM | 7:30 AM |
| 3:00 AM | 8:30 AM |
| 4:00 AM | 9:30 AM |
| 5:00 AM | 10:30 AM |
| 6:00 AM | 11:30 AM |
| 7:00 AM | 12:30 PM |
| 8:00 AM | 1:30 PM |
| 9:00 AM | 2:30 PM |
| 10:00 AM | 3:30 PM |
| 11:00 AM | 4:30 PM |
| 12:00 PM | 5:30 PM |
| 1:00 PM | 6:30 PM |
| 2:00 PM | 7:30 PM |
| 3:00 PM | 8:30 PM |
| 4:00 PM | 9:30 PM |
| 5:00 PM | 10:30 PM |
| 6:00 PM | 11:30 PM |
| 7:00 PM | 12:30 AMnext day |
| 8:00 PM | 1:30 AMnext day |
| 9:00 PM | 2:30 AMnext day |
| 10:00 PM | 3:30 AMnext day |
| 11:00 PM | 4:30 AMnext day |
Best time to meet between London and Kolkata
Working hours overlap (9 AM – 6 PM in both places):
- 9:00 AM – 1:00 PM London = 2:30 PM – 6:30 PM Kolkata
The time difference changes during the year because of daylight saving time, so these windows shift by an hour at other times.
Does the time difference between London and Kolkata change?
Yes. Right now Kolkata is 5 hours 30 minutes ahead of London. These are the dates in the next 12 months when the gap changes:
- Sunday, 28 March 2027: London moves its clocks forward. Kolkata is 4 hours 30 minutes ahead of London from then (it was 5 hours 30 minutes before).
- Sunday, 31 October 2027: London moves its clocks back. Kolkata is 5 hours 30 minutes ahead of London from then (it was 4 hours 30 minutes before).
Office hours in each other's time
- 9 AM to 6 PM in London is 2:30 PM to 11:30 PM in Kolkata.
- 9 AM to 6 PM in Kolkata is 3:30 AM to 12:30 PM in London.
Based on today's clock settings.
Frequently asked questions
What is the time difference between London and Kolkata?
Kolkata is 5 hours 30 minutes ahead of London right now. The gap is not fixed: it is 4 hours 30 minutes at some times of the year and 5 hours 30 minutes at others, because at least one of them changes its clocks for daylight saving time.
How do I convert London to Kolkata?
Add 5 hours 30 minutes to the London time to get the Kolkata time (at today's difference). 9:00 AM in London is 2:30 PM in Kolkata. Or use the converter above and pick any date and time.
What is the current time in Kolkata?
It is 4:52 AM in Kolkata on Tuesday, November 10 (the converter above shows it live). At the same moment it is 11:22 PM in London.
Does the time difference between London and Kolkata change during the year?
Yes. Right now Kolkata is 5 hours 30 minutes ahead of London. Over the next 12 months the gap changes 2 times: Sunday, 28 March 2027: London moves its clocks forward. Kolkata is 4 hours 30 minutes ahead of London from then (it was 5 hours 30 minutes before). Sunday, 31 October 2027: London moves its clocks back. Kolkata is 5 hours 30 minutes ahead of London from then (it was 4 hours 30 minutes before).
What is the best time for a meeting between London and Kolkata?
Between 9 AM and 6 PM in both places you can meet at 9:00 AM – 1:00 PM London = 2:30 PM – 6:30 PM Kolkata. Check the overlap section on this page for every option.