BST to IST Converter – British Summer Time to India Standard Time
IST is 4 hours 30 minutes ahead of BST. BST (British Summer Time) is UTC+1 all year, while IST (India Standard Time) is UTC+5:30 all year. The live clocks below show the current time in both zones, updated every second.
BST to IST Conversion Table (Hour by Hour)
Standard-time conversion from British Summer Time to India Standard Time.
| BST (UTC+1) | IST (UTC+5:30) |
|---|---|
| 12:00 AM | 4:30 AM |
| 1:00 AM | 5:30 AM |
| 2:00 AM | 6:30 AM |
| 3:00 AM | 7:30 AM |
| 4:00 AM | 8:30 AM |
| 5:00 AM | 9:30 AM |
| 6:00 AM | 10:30 AM |
| 7:00 AM | 11:30 AM |
| 8:00 AM | 12:30 PM |
| 9:00 AM | 1:30 PM |
| 10:00 AM | 2:30 PM |
| 11:00 AM | 3:30 PM |
| 12:00 PM | 4:30 PM |
| 1:00 PM | 5:30 PM |
| 2:00 PM | 6:30 PM |
| 3:00 PM | 7:30 PM |
| 4:00 PM | 8:30 PM |
| 5:00 PM | 9:30 PM |
| 6:00 PM | 10:30 PM |
| 7:00 PM | 11:30 PM |
| 8:00 PM | 12:30 AM (next day) |
| 9:00 PM | 1:30 AM (next day) |
| 10:00 PM | 2:30 AM (next day) |
| 11:00 PM | 3:30 AM (next day) |
Frequently Asked Questions
What is the time difference between BST and IST?
IST is 4 hours 30 minutes ahead of BST. BST (British Summer Time) is UTC+1 and IST (India Standard Time) is UTC+5:30.
How do I convert BST to IST?
Take your time in BST and add 4.5 hours and minutes as shown in the table above. For example, 9:00 AM BST is 1:30 PM in IST. The live clocks at the top of this page always show the current conversion.
Does daylight saving time affect BST to IST conversion?
No. Neither BST nor IST observes daylight saving time, so the difference between them is the same all year round.
What is the best time for a meeting between BST and IST?
Look for overlap between 9:00 AM-6:00 PM working hours in both zones using the conversion table above. IST is 4 hours 30 minutes ahead of BST, so there is normally several hours of business-hours overlap.