India to London Time Converter
London is 5 hours and 30 minutes behind India in the reference conversion table. Check the daylight saving note because the live gap can shift.
Daylight saving note: India does not observe DST. London is 5h 30m behind India on GMT and 4h 30m behind during BST.
IST to GMT Conversion Table
Full 24-hour reference table. Use the live clocks above for the exact current offset.
| 🇮🇳 IST | 🇬🇧 IST → GMTUTC+5:30 to UTC+0 | 🇬🇧 IST → BSTUTC+5:30 to UTC+1 | Note |
|---|---|---|---|
| 00:00 | 6:30 PM | 7:30 PM | prev day |
| 01:00 | 7:30 PM | 8:30 PM | prev day |
| 02:00 | 8:30 PM | 9:30 PM | prev day |
| 03:00 | 9:30 PM | 10:30 PM | prev day |
| 04:00 | 10:30 PM | 11:30 PM | prev day |
| 05:00 | 11:30 PM | 12:30 AM | prev day |
| 06:00 | 12:30 AM | 1:30 AM | |
| 07:00 | 1:30 AM | 2:30 AM | |
| 08:00 | 2:30 AM | 3:30 AM | |
| 09:00 | 3:30 AM | 4:30 AM | |
| 10:00 | 4:30 AM | 5:30 AM | |
| 11:00 | 5:30 AM | 6:30 AM | |
| 12:00 | 6:30 AM | 7:30 AM | |
| 13:00 | 7:30 AM | 8:30 AM | |
| 14:00 | 8:30 AM | 9:30 AM | |
| 15:00 | 9:30 AM | 10:30 AM | |
| 16:00 | 10:30 AM | 11:30 AM | |
| 17:00 | 11:30 AM | 12:30 PM | |
| 18:00 | 12:30 PM | 1:30 PM | |
| 19:00 | 1:30 PM | 2:30 PM | |
| 20:00 | 2:30 PM | 3:30 PM | |
| 21:00 | 3:30 PM | 4:30 PM | |
| 22:00 | 4:30 PM | 5:30 PM | |
| 23:00 | 5:30 PM | 6:30 PM |
"prev day" = converted time falls on the previous calendar day.
Best Hours to Schedule India Standard Time–London Calls
The practical India-London overlap depends on both workdays. India follows India business hours; London follows UK business hours. With a 5 hours and 30 minutes reference gap, the safest workflow is to choose the meeting time in India, convert it to London, then verify the calendar date before sending the invite. If the call repeats weekly, check the slot in January and July so daylight saving changes do not quietly move one side by an hour.
About India Standard Time (IST)
India uses one fixed UTC+5:30 timezone nationwide, with no daylight saving change and a half-hour offset that people often miss. For this converter, India is the source timezone. Use the first column of the table for the IST time you want to convert, then read the matching GMT/BST result across the row. When the converted result says next day or previous day, include the date in your calendar invite.
About London (GMT)
London switches between GMT and BST and is a major hub for finance, professional services, and Europe-facing calls. For India-London planning, the target clock is where mistakes usually happen. Do not rely only on a memorized offset if one side observes daylight saving. Use the live clocks above for the current value and the table below as a quick reference for common hours.
How to Avoid India Standard Time–London Conversion Mistakes
Use the live clocks and the table for different jobs. The live clocks show the current offset between India Standard Time and London. The table gives you a stable reference for planning common hours. If the page has more than one table column, pick the column that matches the season or DST state shown in the column label.
Daylight saving is the main trap. Some pairs stay fixed all year, while others move by one hour because only one side changes clocks, or because the two sides change on different dates. That is why this page keeps the daylight saving note near the live clocks and labels alternate table scenarios instead of hiding the offset change in a paragraph.
Always check the calendar date when the converted time lands near midnight. A late evening time in India Standard Time can become the next day in London, and an early morning time can still be the previous day. If the table marks "next day" or "prev day", include that date shift in the message or calendar invite.
Abbreviations can be ambiguous. ET can mean EST or EDT; London can be GMT or BST; Sydney can be AEST or AEDT. City names and IANA time zones are safer for exact scheduling than abbreviations alone. For recurring meetings, test the same local time once in January and once in July before you lock it in.
For one-off events, enter the exact date and time in the main time zone converter or meeting scheduler if the table does not show your hour. That keeps the answer tied to the correct daylight saving rule instead of a memorized offset.
When you share the result, write both local times in one line: "10:00 AM IST/ converted GMT time." For client calls, flights, webinars, launches, and deadlines, also include the date. The extra wording feels repetitive, but it gives every recipient a second way to catch a timezone mistake before it becomes a missed meeting. It is especially helpful when someone forwards the invite to a third city.
Frequently Asked Questions
What is the India to London time difference?
London is 5 hours and 30 minutes behind India in the reference table. India does not observe DST. London is 5h 30m behind India on GMT and 4h 30m behind during BST.
What time is 9 AM in India in London?
Use the 9:00 row in the conversion table above for the reference result. If the page shows multiple DST scenarios, choose the column that matches the season, or use the live clocks for the current offset.
Does daylight saving affect India to London conversions?
India does not observe DST. London is 5h 30m behind India on GMT and 4h 30m behind during BST.
What is the best time for a India-London meeting?
Start with normal business hours on both sides. Because India follows India business hours and London follows UK business hours, the best slot is usually near one side's morning and the other side's afternoon. For recurring meetings, verify the same local time in both winter and summer before locking it in.