During GMT
When the UK is on Greenwich Mean Time, India is 5 hours 30 minutes ahead of London. 9:00 AM in London is 2:30 PM in India.
Civil time & global coordination
India Time vs UK Time
Compare India and London for your chosen date. India is 5 hours 30 minutes ahead during GMT and 4 hours 30 minutes ahead during British Summer Time.
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India: IST UTC+5:30UK: GMT/BSTDST changes only in UK
Convert an India date and time
| City | Local time | Local date | Difference from India | Date relationship |
|---|
Current Difference
During BST
When the UK observes British Summer Time, India is 4 hours 30 minutes ahead of London. 9:00 AM in London is 1:30 PM in India.
Why the difference changes
India does not observe daylight saving time. The India-UK difference changes because the UK changes clocks in spring and autumn.
India–UK Call Examples
Useful for work, family and students| India time | UK time during GMT | UK time during BST | Use case |
|---|---|---|---|
| 1:30 PM IST | 8:00 AM UK | 9:00 AM UK | Early UK work calls |
| 3:00 PM IST | 9:30 AM UK | 10:30 AM UK | Mid-morning UK example |
| 5:30 PM IST | 12:00 PM UK | 1:00 PM UK | Midday UK, evening India |
| 7:30 PM IST | 2:00 PM UK | 3:00 PM UK | Late India business calls |
| 10:30 PM IST | 5:00 PM UK | 6:00 PM UK | Late India evening example |
Practical Scheduling Notes
For remote teams
For an assumed 9 AM–5 PM workday in both countries, the shared hours are 2:30–5 PM IST during GMT and 1:30–5 PM IST during BST. Any later Indian window requires an agreed extension of the India workday.
For students
University calls, admission interviews and webinars often list London time. Convert carefully during March and October because UK daylight saving changes can move the meeting by one hour relative to India.
For family calls
Evening in India is often afternoon in the UK. For example, 7:00 PM IST is 1:30 PM in London during GMT or 2:30 PM during BST. Agree on availability rather than assuming an afternoon is free.
For market watchers
The London Stock Exchange overlaps with the Indian afternoon. During GMT the London session begins around 1:30 PM IST; during BST it begins around 12:30 PM IST.
Common Conversion Examples
9:00 AM UK is 2:30 PM IST during GMT and 1:30 PM IST during BST. 12:00 PM UK is 5:30 PM IST during GMT and 4:30 PM IST during BST. 5:00 PM UK is 10:30 PM IST during GMT and 9:30 PM IST during BST.
If you are creating a meeting invite, use the city or time zone name rather than typing only “UK time.” In calendar apps, choose London for the UK and Kolkata for India. This allows the software to adjust correctly when the UK changes between GMT and BST.
Write an unambiguous invitation
Include the full date, city and local time for both participants. For example, 3:00 PM IST on 15 January 2026 is 9:30 AM in London. On 15 July, the same Indian time is 10:30 AM in London.
A recurring 9:30 AM London invitation is a different choice: its India time moves from 3:00 PM during GMT to 2:00 PM during BST. Decide which participant’s local clock should anchor the series, then use that city timezone in the calendar.
India and UK Time FAQ
Is India always ahead of the UK?
Yes. India is always ahead of the UK. The difference is 5 hours 30 minutes during GMT and 4 hours 30 minutes during British Summer Time.
Does India change clocks for daylight saving?
No. India does not observe daylight saving time. IST remains UTC+5:30 all year.
What is the best time for India-UK meetings?
For business, 2:00 PM to 6:30 PM IST is usually the most practical window because it overlaps with the UK working day.
What timezone should I use in calendar apps?
Use Asia/Kolkata for India and Europe/London for the UK. Do not manually adjust for daylight saving; the calendar app should handle it.