IST to London Time Converter
Convert India Standard Time to London instantly.
Scroll the timeline to check any hour of the day.
India Standard Time
IST
11:22
London
BST
6:52
IST is on standard time (IST), while BST is on daylight savings (BST) right now.
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How the IST to BST time difference works
BST is 4 hours 30 minutes behind IST. India Standard Time (IST) is the time zone of India and Sri Lanka. London (BST) is a city in United Kingdom. For example, 9:00 AM IST is 4:30 AM BST. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
4 hours 30 minutes
Daylight saving
BST only
IST offset
UTC+5:30
BST offset
UTC+0
IST to BST conversion chart
| India Standard Time (IST) | London (BST) |
|---|---|
| 12:00 AM | 7:30 PM -1 day |
| 1:00 AM | 8:30 PM -1 day |
| 2:00 AM | 9:30 PM -1 day |
| 3:00 AM | 10:30 PM -1 day |
| 4:00 AM | 11:30 PM -1 day |
| 5:00 AM | 12:30 AM |
| 6:00 AM | 1:30 AM |
| 7:00 AM | 2:30 AM |
| 8:00 AM | 3:30 AM |
| 9:00 AM | 4:30 AM |
| 10:00 AM | 5:30 AM |
| 11:00 AM | 6:30 AM |
| 12:00 PM | 7:30 AM |
| 1:00 PM | 8:30 AM |
| 2:00 PM | 9:30 AM |
| 3:00 PM | 10:30 AM |
| 4:00 PM | 11:30 AM |
| 5:00 PM | 12:30 PM |
| 6:00 PM | 1:30 PM |
| 7:00 PM | 2:30 PM |
| 8:00 PM | 3:30 PM |
| 9:00 PM | 4:30 PM |
| 10:00 PM | 5:30 PM |
| 11:00 PM | 6:30 PM |
Best time to meet
A standard 9 to 5 workday overlaps from 1:30 PM to 5:00 PM IST (9:00 AM to 12:30 PM BST). Schedule inside that window to catch both coasts during business hours.
Cities in each time zone
India Standard Time (IST)
MumbaiDelhiBengaluruKolkataChennaiHyderabad
London (BST)
Manchester (UK)BirminghamLiverpoolGlasgowLeedsBelfast
IST to BST questions
Is BST ahead of or behind IST?
BST is 4 hours 30 minutes behind IST. So 9:00 AM IST is 4:30 AM BST, and 5:00 PM IST is 12:30 PM BST.
What time is BST when it is 12:00 PM IST?
When it is 12:00 PM (noon) IST in India Standard Time, it is 7:30 AM BST in London.
How many hours difference is there between IST and BST?
There is a 4 hours 30 minutes difference. London (BST) runs 4 hours 30 minutes behind India Standard Time (IST).
Do IST and BST observe daylight saving time?
London observes daylight saving time but India Standard Time does not, so the difference between them changes by an hour twice a year.
What is the best time to schedule a meeting between IST and BST?
A standard 9-to-5 workday overlaps from 1:30 PM to 5:00 PM IST (9:00 AM to 12:30 PM BST). Scheduling inside that window keeps the call during business hours in both India Standard Time and London.
Which cities use IST and BST?
India Standard Time (IST) covers cities such as Mumbai, Delhi, Bengaluru, Kolkata, Chennai, Hyderabad. London (BST) covers cities such as Manchester (UK), Birmingham, Liverpool, Glasgow, Leeds, Belfast.