Kolkata to London Time Difference
🇮🇳 Kolkata is currently 5.5 hours behind of 🇬🇧 London. This difference varies between 5.5h and 4.5h due to Daylight Saving Time.
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Atin 🇮🇳 Kolkata→it will be—in 🇬🇧 London
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Difference
-5.5h
Business overlap
4h
Distance
7,962 km
Approx. flight
9.4h
Hour-by-Hour: Kolkata to London
| 🇮🇳 Kolkata | 🇬🇧 London | Note |
|---|---|---|
| 12:00 AM | 6:30 PM(prev day) | Previous day |
| 1:00 AM | 7:30 PM(prev day) | Previous day |
| 2:00 AM | 8:30 PM(prev day) | Previous day |
| 3:00 AM | 9:30 PM(prev day) | Previous day |
| 4:00 AM | 10:30 PM(prev day) | Previous day |
| 5:00 AM | 11:30 PM(prev day) | Previous day |
| 6:00 AM | 12:30 AM | |
| 7:00 AM | 1:30 AM | |
| 8:00 AM | 2:30 AM | |
| 9:00 AM | 3:30 AM | |
| 10:00 AM | 4:30 AM | |
| 11:00 AM | 5:30 AM | |
| 12:00 PM | 6:30 AM | |
| 1:00 PM | 7:30 AM | |
| 2:00 PM | 8:30 AM | |
| 3:00 PM | 9:30 AM | |
| 4:00 PM | 10:30 AM | |
| 5:00 PM | 11:30 AM | |
| 6:00 PM | 12:30 PM | |
| 7:00 PM | 1:30 PM | |
| 8:00 PM | 2:30 PM | |
| 9:00 PM | 3:30 PM | |
| 10:00 PM | 4:30 PM | |
| 11:00 PM | 5:30 PM |
Daylight Saving Time (DST)
London observes Daylight Saving Time, while Kolkata does not. This causes the time difference to shift between 5.5 hours behind and 4.5 hours behind depending on the season. Currently, Kolkata is 5.5 hours behind relative to London.
Min difference
5.5h
Max difference
4.5h
Best Meeting Times
There are 4 overlapping business hours between Kolkata and London (9 AM – 6 PM in each city).
🇮🇳 Kolkata
2:00 PM – 6:00 PM
🇬🇧 London
8:30 AM – 12:30 PM
Frequently Asked Questions
What is the time difference between Kolkata and London?
The time difference between Kolkata and London is currently 5.5 hours behind. Kolkata uses GMT+5:30 (UTC+5:30), while London uses GMT (UTC+0). This difference varies seasonally due to Daylight Saving Time, ranging from 5.5 hours behind to 4.5 hours behind.
When it's noon in Kolkata, what time is it in London?
When it's 12:00 PM (noon) in Kolkata, it is 6:30 AM in London. Use our calculator above to convert any other time.
Does the time difference between Kolkata and London change?
Yes, the time difference changes throughout the year. Because London observes Daylight Saving Time, the offset shifts between 5.5 hours behind and 4.5 hours behind at different times of the year.
What are the best times to schedule a call between Kolkata and London?
The best time to call is between 2:00 PM and 6:00 PM in Kolkata (which is 8:30 AM – 12:30 PM in London). This 4-hour window falls within business hours in both cities.
Is Kolkata ahead or behind London?
Kolkata is currently 5.5 hours ahead of London.
What time zone is Kolkata in?
Kolkata is in the Asia/Kolkata time zone, currently using GMT+5:30 (UTC+5:30). Kolkata does not observe Daylight Saving Time.
What time is midnight in Kolkata in London?
When it is midnight (12:00 AM) in Kolkata, it is 6:30 PM in London.