IST to London Time Converter
IST (India Standard Time) to London (UK time (GMT/BST)).
London is 4 hours 30 minutes behind IST right now.
IST and London, hour by hour
Move the mouse over the hours (on a phone, drag the time label) to see the time in both places at that moment. Click an hour to select it, or add more cities.
- Night to day
- Working hours (9 to 5)
- Weekend
- Current hour
IST to London conversion table
Every hour of today in IST, with the time in London. Highlighted rows are working hours in both places.
| IST | London |
|---|---|
| 12 am | 7:30 pm (previous day) |
| 1 am | 8:30 pm (previous day) |
| 2 am | 9:30 pm (previous day) |
| 3 am | 10:30 pm (previous day) |
| 4 am | 11:30 pm (previous day) |
| 5 am | 12:30 am |
| 6 am | 1:30 am |
| 7 am | 2:30 am |
| 8 am | 3:30 am |
| 9 am | 4:30 am |
| 10 am | 5:30 am |
| 11 am | 6:30 am |
| 12 pm | 7:30 am |
| 1 pm | 8:30 am |
| 2 pm | 9:30 am |
| 3 pm | 10:30 am |
| 4 pm | 11:30 am |
| 5 pm | 12:30 pm |
| 6 pm | 1:30 pm |
| 7 pm | 2:30 pm |
| 8 pm | 3:30 pm |
| 9 pm | 4:30 pm |
| 10 pm | 5:30 pm |
| 11 pm | 6:30 pm |
Best time to meet
Working hours (9 am to 5 pm) overlap from 2 pm to 5 pm in IST, which is 9:30 am to 12:30 pm in London.
Daylight saving time
The difference changes during the year, because of daylight saving time. Here are the periods for 2026 and 2027:
- Jan 1, 2026 – Mar 28, 2026: London is 5 hours 30 minutes behind IST
- Mar 29, 2026 – Oct 24, 2026: London is 4 hours 30 minutes behind IST
- Oct 25, 2026 – Mar 27, 2027: London is 5 hours 30 minutes behind IST
- Mar 28, 2027 – Oct 30, 2027: London is 4 hours 30 minutes behind IST
- Oct 31, 2027 – Dec 31, 2027: London is 5 hours 30 minutes behind IST
New Delhi does not use daylight saving time: its clocks stay the same all year.
London changes its clocks forward on Mar 29, 2026, back on Oct 25, 2026, forward on Mar 28, 2027, back on Oct 31, 2027.
Questions and answers
What is the time difference between IST and London?
London is 4 hours 30 minutes behind IST right now. During the year it's either 5 hours 30 minutes or 4 hours 30 minutes, because of daylight saving time.
What time is it in London when it's 9 am in IST?
Today, 9 am in IST is 4:30 am in London.
Does IST or London use daylight saving time?
New Delhi does not use daylight saving time: its clocks stay the same all year. London changes its clocks forward on Mar 29, 2026, back on Oct 25, 2026, forward on Mar 28, 2027, back on Oct 31, 2027.