IST to UK converter
UK time (UK) is 4 hours 30 minutes behind India Standard Time (IST) for most of the year, and 5 hours 30 minutes for the rest because of daylight saving time.
India Standard Time · IST
2:31 PM
Sunday 25 October
UK time · GMT
9:01 AM
Sunday 25 October
Right now, UK time is 5 hours 30 minutes behind India Standard Time. Updates live from your device’s clock.
Hour by hour
Today’s conversion. Green dots mark 9-to-5 working hours.
| IST | UK |
|---|---|
| 12:00 AM | 7:30 PMprev day |
| 1:00 AM | 8:30 PMprev day |
| 2:00 AM | 9:30 PMprev day |
| 3:00 AM | 10:30 PMprev day |
| 4:00 AM | 11:30 PMprev day |
| 5:00 AM | 12:30 AM |
| 6:00 AM | 1:30 AM |
| 7:00 AM | 1:30 AM |
| 8:00 AM | 2:30 AM |
| 9:00 AM | 3:30 AM |
| 10:00 AM | 4:30 AM |
| 11:00 AM | 5:30 AM |
| 12:00 PM | 6:30 AM |
| 1:00 PM | 7:30 AM |
| 2:00 PM | 8:30 AM |
| 3:00 PM | 9:30 AM |
| 4:00 PM | 10:30 AM |
| 5:00 PM | 11:30 AM |
| 6:00 PM | 12:30 PM |
| 7:00 PM | 1:30 PM |
| 8:00 PM | 2:30 PM |
| 9:00 PM | 3:30 PM |
| 10:00 PM | 4:30 PM |
| 11:00 PM | 5:30 PM |
Best time to meet
When both sides are inside 9 AM–5 PM on a weekday, in winter and in summer. If there’s no overlap, we show when both are awake (8 AM–9 PM).
Mid-January
- 2:30 PM–5:00 PMin IST=9:00 AM–11:30 AMin UK
Mid-July
- 1:30 PM–5:00 PMin IST=9:00 AM–12:30 PMin UK
When the gap changes
- 25 October 2026 → 28 March 2027UK −5h 30m
- 28 March 2027 → 31 October 2027UK −4h 30m
India Standard Time is UTC+5:30 all year. India doesn't use daylight saving time, so every change in the gap comes from the other side.
The UK is on GMT (UTC+0) in winter and British Summer Time, BST (UTC+1), from the last Sunday of March to the last Sunday of October.
Questions
What is the time difference between India Standard Time and UK time?
UK time is 4 hours 30 minutes behind India Standard Time for most of the year. Because of daylight saving time, the gap is 5 hours 30 minutes for part of the year.
If it's 9 AM in India Standard Time, what time is it in UK time?
When it's 9:00 AM in India Standard Time, it's 3:30 AM in UK time. At 5:00 PM in India Standard Time, it's 11:30 AM in UK time. (Based on today's offsets.)
What is the best time for a call between India Standard Time and UK time?
Working hours overlap from 2:30 PM to 5:00 PM in India Standard Time, which is 9:00 AM to 11:30 AM in UK time.
Does India Standard Time use daylight saving time?
No. India Standard Time stays on the same offset all year.
Does UK time use daylight saving time?
Yes. UK time's next clock changes are on Sunday, 25 October 2026 (back one hour) and Sunday, 28 March 2027 (forward one hour).