BST to IST Converter – British Summer Time to Indian Standard Time
British Summer Time · London, Manchester, Birmingham, Edinburgh
Also convert in the other direction: IST to BST →
Live Clock
BST to IST Conversion Table
Common BST times converted to Indian Standard Time (IST)
| UK — BST | India — IST | Day |
|---|---|---|
| 12:00 AM (midnight) BST | 4:30 AM IST | same day |
| 6:00 AM BST | 10:30 AM IST | same day |
| 9:00 AM BST | 1:30 PM IST | same day |
| 12:00 PM BST | 4:30 PM IST | same day |
| 3:00 PM BST | 7:30 PM IST | same day |
| 6:00 PM BST | 10:30 PM IST | same day |
| 9:00 PM BST | 1:30 AM IST | next day |
| 11:30 PM BST | 4:00 AM IST | next day |
India Work Hours in BST — Meeting Planner
When India is working (9 AM – 9 PM IST), what time is it in UK?
| India — IST | UK — BST | Day |
|---|---|---|
| 9:00 AM IST | 4:30 AM BST | same day |
| 12:00 PM IST | 7:30 AM BST | same day |
| 3:00 PM IST | 10:30 AM BST | same day |
| 6:00 PM IST | 1:30 PM BST | same day |
| 9:00 PM IST | 4:30 PM BST | same day |
About British Summer Time and IST Time Difference
Indian Standard Time (IST) is UTC+5:30. British Summer Time (BST) is UTC+01:00. The offset between BST and IST is IST −4:30 hrs.
India does not observe Daylight Saving Time — IST stays at UTC+5:30 year-round. If UK observes DST, the actual offset between BST and IST will shift by 1 hour during the DST period (typically spring–autumn in the Northern Hemisphere, autumn–spring in the Southern Hemisphere).
Major cities in British Summer Time
London, Manchester, Birmingham, Edinburgh.
Frequently Asked Questions
What is the time difference between BST and IST?
IST (Indian Standard Time) is UTC+5:30. British Summer Time is UTC+01:00. The difference is IST −4:30 hrs. For example, 12:00 PM BST = 4:30 PM IST.
Does India observe Daylight Saving Time?
No. India does not observe DST. IST stays at UTC+5:30 all year. The offset between BST and IST may change if your timezone observes DST — typically shifting by 1 hour in spring and autumn.
How do I convert BST to IST?
To convert BST to IST: add 4.5 hours to the BST time. Use the conversion table above or the live clock for instant DST-aware results.
India–UK Work Hour Overlap
Find shared business hours, DST impact, and daily overlap charts between India (IST) and UK.
View India–UK Overlap →