Birmingham to Kolkata — Time Difference
Live clocks · Full 24-hour table · United Kingdom → India
Time Difference: Birmingham vs Kolkata
Kolkata is 4 hours and 30 minutes ahead of Birmingham. Birmingham is in British Summer Time (GMT+1, UTC+1) and Kolkata is in India Standard Time (GMT+5:30, UTC+5:30).
Use the table below to find the equivalent Kolkata time for any hour in Birmingham. Click any row to see the full conversion page for that hour.
Business Hours — Birmingham to Kolkata
"Good" = both cities within business hours (9 AM–5 PM)
Full 24-Hour Table — Birmingham to Kolkata
Frequently Asked Questions
What is the time difference between Birmingham and Kolkata?
Kolkata is 4 hours and 30 minutes ahead of Birmingham. Birmingham uses British Summer Time (GMT+1, UTC+1) and Kolkata uses India Standard Time (GMT+5:30, UTC+5:30).
What time is it in Kolkata when it is 9 AM in Birmingham?
9 AM in Birmingham (GMT+1) equals 1:30 PM in Kolkata (GMT+5:30).
Is Birmingham ahead or behind Kolkata?
Kolkata is 4 hours and 30 minutes ahead of Birmingham.
What is the best time to call from Birmingham to Kolkata?
The best time to call from Birmingham to Kolkata is between 9 AM–1 PM Birmingham time, when Kolkata is also within normal working hours (9 AM–5 PM).
Time Zones
Birmingham
British Summer Time
GMT+1 · UTC+1
Kolkata
India Standard Time
GMT+5:30 · UTC+5:30
Reverse Conversion
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