Kolkata London Time Difference

What is the Time Difference Between Kolkata and London?

Kolkata is 4.5-5.5 hours ahead of London. Kolkata uses Indian Standard Time (IST, UTC+5:30) while London uses Greenwich Mean Time/British Summer Time (GMT/BST, UTC+0/+1). During standard time, Kolkata is 5.5 hours ahead; during daylight saving time, Kolkata is 4.5 hours ahead.

India does not observe daylight saving time, while the UK does, so the difference varies seasonally.

Best Time to Call London from Kolkata

Best calling time: 1:30 PM - 10:30 PM Kolkata time. This corresponds to approximately 9:00 AM - 6:00 PM in London during daylight saving time.

Kolkata and London share deep historical ties from the British colonial era. Kolkata was the capital of British India until 1911. Today, strong business, educational, and cultural connections continue between the cities.

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