Kolkata, West Bengal, India is 4 hours, 30 minutes ahead of London, England, UK
3:30 pm Thursday, in Kolkata, West Bengal, India is
11:00 am Thursday, in London, England, UK
See distance from Kolkata to London
Kolkata doesn't observe daylight saving time but London does. DST in London started on 31 March 2019 and will end on 27 October 2019. Once DST ends, Kolkata - London time difference will be 5:30 hours.