Kolkata to London time
KolkataIndia9:49:55 PMSun 27 Sept · IST UTC+5:30
4 h 30 minLondon is behind
LondonUnited Kingdom5:19:55 PMSun 27 Sept · BST UTC+1Synchronising…
Kolkata and London time difference
London is currently 4 h 30 min behind Kolkata. Kolkata is on IST (UTC+05:30) and London is on BST (UTC+01:00).
The difference can change with daylight saving time. The next change is in London on Sunday, 25 October 2026, after which London will be 5 h 30 min behind Kolkata.
If it is 9:00 in Kolkata, what time is it in London?
It is 04:30 in London.
What is the best time for a call between Kolkata and London?
Use the planner above: green hours are within 9:00–17:00 in both places.