IST to GMT: India Standard Time to UK Time
UK Time is 4 hours 30 minutes behind IST in summer (BST, UTC+01:00) and 5 hours 30 minutes behind IST in winter (GMT, UTC+00:00). Use the converter above — type a time such as “9am IST to GMT”, drag along the hour strips, or pick a date.
IST to GMT conversion table
| India Standard Time (IST) | UK Time — January | UK Time — July |
|---|---|---|
| 12:00 AM IST | 6:30 PM GMT (previous day) | 7:30 PM BST (previous day) |
| 1:00 AM IST | 7:30 PM GMT (previous day) | 8:30 PM BST (previous day) |
| 2:00 AM IST | 8:30 PM GMT (previous day) | 9:30 PM BST (previous day) |
| 3:00 AM IST | 9:30 PM GMT (previous day) | 10:30 PM BST (previous day) |
| 4:00 AM IST | 10:30 PM GMT (previous day) | 11:30 PM BST (previous day) |
| 5:00 AM IST | 11:30 PM GMT (previous day) | 12:30 AM BST |
| 6:00 AM IST | 12:30 AM GMT | 1:30 AM BST |
| 7:00 AM IST | 1:30 AM GMT | 2:30 AM BST |
| 8:00 AM IST | 2:30 AM GMT | 3:30 AM BST |
| 9:00 AM IST | 3:30 AM GMT | 4:30 AM BST |
| 10:00 AM IST | 4:30 AM GMT | 5:30 AM BST |
| 11:00 AM IST | 5:30 AM GMT | 6:30 AM BST |
| 12:00 PM IST | 6:30 AM GMT | 7:30 AM BST |
| 1:00 PM IST | 7:30 AM GMT | 8:30 AM BST |
| 2:00 PM IST | 8:30 AM GMT | 9:30 AM BST |
| 3:00 PM IST | 9:30 AM GMT | 10:30 AM BST |
| 4:00 PM IST | 10:30 AM GMT | 11:30 AM BST |
| 5:00 PM IST | 11:30 AM GMT | 12:30 PM BST |
| 6:00 PM IST | 12:30 PM GMT | 1:30 PM BST |
| 7:00 PM IST | 1:30 PM GMT | 2:30 PM BST |
| 8:00 PM IST | 2:30 PM GMT | 3:30 PM BST |
| 9:00 PM IST | 3:30 PM GMT | 4:30 PM BST |
| 10:00 PM IST | 4:30 PM GMT | 5:30 PM BST |
| 11:00 PM IST | 5:30 PM GMT | 6:30 PM BST |
Daylight saving
India Standard Time has no daylight saving — it stays at UTC+05:30 all year. UK Time switches to BST around March and back to GMT around October. Because of this the difference between IST and GMT changes during the year — the converter above always uses the right one for the date you pick.
Frequently asked questions
- What is the time difference between IST and GMT?
- UK Time is 4h 30m behind IST in summer (BST) and 5h 30m behind in winter (GMT).
- What is 9 AM IST in GMT?
- 9:00 AM IST is 4:30 AM BST in summer and 3:30 AM GMT in winter.
- Which IST is this?
- Here IST means India Standard Time, used in India (Mumbai, Delhi, Bengaluru). Abbreviations can mean different places — IST is also used for Irish and Israel Standard Time; type a city in the converter if you meant another one.
- Is GMT the same as BST?
- They are the same place in different seasons: GMT/BST — GMT in winter and BST during daylight saving. GlobalHours switches automatically on the right date.