UK Time to India Time: Difference, BST Change and Examples

Quick answer: India is 4 hours 30 minutes ahead of the UK right now, while the UK is on British Summer Time (BST). From Sunday 25 October 2026, when UK clocks go back, India will be 5 hours 30 minutes ahead, and it stays that way until Sunday 28 March 2027. To change UK time to Indian time, add the gap. To change Indian time to UK time, subtract it. For example, 9:00 AM in London is 1:30 PM in India in summer and 2:30 PM in winter.

Searches like uk time to india time difference, time difference India to UK and UK time zone difference to India all have the same answer, and it changes twice a year. This guide shows the gap now and over the next 12 months, a simple three-step method, worked examples (including cases where the date changes), cheat-sheets to save, the best hours to call, and the situations where the gap catches people out. The gaps are calculated from the IANA time zone database that phones and computers use, and the UK clock dates are checked against the UK government. Last updated 11 October 2026.

Key takeaways

• India uses Indian Standard Time (IST, UTC+5:30) all year. It never changes its clocks.
• The UK uses Greenwich Mean Time (GMT, UTC+0) in winter and British Summer Time (BST, UTC+1) in summer.
• The gap is 4 hours 30 minutes in UK summer and 5 hours 30 minutes in UK winter.
• UK clocks go back on 25 October 2026 and forward on 28 March 2027, so the gap grows by one hour in October and shrinks by one hour in March.
• The whole UK shares one time. London, Cheltenham, Edinburgh, Cardiff and Belfast all have the same gap from India.
• India is always ahead of the UK. When it is morning in the UK, it is already afternoon or evening in India.

UK time to India time difference now and over the next 12 months

On the day the clocks change, the switch happens at 2:00 AM in the UK, so the gap is already new by breakfast. If you saved a number for the summer, update it on 25 October.

How to calculate UK time to Indian time

You need three steps.

1. Check whether the UK is on BST or GMT. BST runs from the last Sunday of March to the last Sunday of October. In 2026 it ends on Sunday 25 October. GMT then runs until Sunday 28 March 2027.
2. Pick the gap. It is 4 hours 30 minutes in BST and 5 hours 30 minutes in GMT.
3. Add or subtract, then check the date. Indian time equals UK time plus the gap. UK time equals Indian time minus the gap. If the answer passes midnight, move the date by one day.

There is a second way. Convert the UK time to UTC (in GMT it is already UTC, and in BST you subtract one hour), then add 5 hours 30 minutes. This works for any country, not only the UK.

Time difference from India to UK: does the whole UK share one time?

Yes. England, Scotland, Wales and Northern Ireland all use the same clock, so the gap from India to Cheltenham, Manchester, Glasgow or Belfast is the same as the gap to London. The Republic of Ireland also uses the same clock as the UK all year, and so do the Channel Islands and the Isle of Man. You only need to check whether the UK is on summer time or winter time.

Worked examples

BST is the summer time. GMT is the winter time.

• 9:00 AM in London to India: 9:00 AM plus 4 hours 30 minutes is 1:30 PM in India in BST. In GMT, 9:00 AM plus 5 hours 30 minutes is 2:30 PM.
• 5:00 PM in London to India: 9:30 PM in India in BST, and 10:30 PM in GMT.
• 9:00 AM in India to London: 9:00 AM minus 4 hours 30 minutes is 4:30 AM in BST. In GMT it is 3:30 AM.
• 9:00 PM in India to London: 4:30 PM in BST, and 3:30 PM in GMT.
• Date change, UK to India: 10:00 PM Monday in London (GMT) plus 5 hours 30 minutes is 3:30 AM Tuesday in India.
• Date change, India to UK: 2:00 AM Tuesday in India minus 5 hours 30 minutes is 8:30 PM Monday in London (GMT).

The clock-change week: UK and USA change on different days

The UK moves its clocks back on 25 October 2026, but the USA moves its clocks back a week later, on 1 November. For that one week, the gap between the UK and the USA is one hour smaller than usual, because the UK is already on winter time while the USA is still on summer time. If you join calls with both the UK and the USA from India, check the invite for that week. Our guide on the time difference between India and the USA has the US dates.

Cheat-sheets you can save

The first table uses UK winter time (GMT). In UK summer time (BST), the gap is one hour smaller, so subtract one hour from every Indian time in the first table. In the second table, the BST column already includes that change.

UK time (GMT) to Indian time

Indian time to UK time (GMT and BST)

Best times to call or meet

The table shows the hours when it is between 8:00 AM and 9:30 PM on both sides. These are polite hours for most people, and you can stretch them a little for close family.

The UK and India share a large overlap, mostly in the Indian afternoon and early evening. A good rule is to call at 2:00 PM to 6:00 PM in India, which is the UK morning and lunchtime. After 9:30 PM in India it is already 4:00 PM or 5:00 PM in the UK, so late-evening calls still work for families, but not for early-morning UK work meetings. For a full plan for relatives, see our guide on the best time to call family abroad from India.

Real-life situations where the gap matters

Students and university deadlines

UK universities publish deadlines in UK local time. A deadline of 11:59 PM in the UK is 4:29 AM the next day in India in summer, and 5:29 AM the next day in winter. Always confirm the deadline on the official website, and set your reminder in the UK time zone, not in Indian time.

Job interviews and work meetings

Write the time in both zones, for example 10:00 AM UK / 3:30 PM IST in winter. In your calendar app, pick London as the time zone instead of a short code, so the invite converts correctly on both sides. Recheck recurring meetings around 25 October 2026 and 28 March 2027.

Flights between India and the UK

Flight tickets show local time at each airport. A flight that lands in London at 6:00 AM in winter lands at 11:30 AM Indian time, so a family member waiting in India will see the arrival in the late morning. Use the table above to convert before you plan pick-ups.

Matches and live events

UK events are listed in UK time. A 3:00 PM Saturday kick-off in the UK is 7:30 PM in India in summer and 8:30 PM in winter. A 7:45 PM UK evening start is 12:15 AM the next day in India in summer, and 1:15 AM in winter.

What GMT and BST mean, and why the UK changes its clocks

Greenwich Mean Time (GMT) is the UK’s standard time and matches UTC, the world time standard. British Summer Time (BST) is GMT plus one hour. The UK moves to BST in spring so that evenings stay lighter, and moves back to GMT in autumn. India sits at UTC+5:30 and does not use daylight saving, so Indian clocks stay fixed. That is why the same UK to India conversion needs a different number in summer and winter. The half-hour in the gap comes from India’s offset, which is half an hour away from a whole-hour time zone.

A sample working day for a UK and India team

Suppose the UK office works 9:00 AM to 5:00 PM and the Indian office works 10:00 AM to 7:00 PM.

• In UK summer (BST), the shared hours are 1:30 PM to 7:00 PM in India, which is 9:00 AM to 2:30 PM in the UK. That is 5 hours 30 minutes of overlap.
• In UK winter (GMT), the shared hours are 2:30 PM to 7:00 PM in India, which is 9:00 AM to 1:30 PM in the UK. That is 4 hours 30 minutes of overlap.

This means one hour of shared time disappears when the UK moves back to GMT in October, even though nobody in India changed anything. If your team holds a fixed daily meeting, schedule it in the UK time zone and let the calendar convert the Indian time, so the meeting stays at the same UK hour all year.

Common mistakes to avoid

• Using one fixed number for the whole year. The gap is 4 hours 30 minutes in summer and 5 hours 30 minutes in winter.
• Forgetting the date change when the result passes midnight.
• Thinking India changes its clocks too. India does not, so if the gap moved, the UK clock moved.
• Mixing up the UK and Indian time zone names. The UK uses GMT or BST. India uses IST. IST also means Irish Standard Time in Ireland, so write India Standard Time or IST (India) in emails.
• Assuming a different gap for different UK cities. The whole UK has one time.

Check any date instantly

If you want the answer for a specific day without calculating, use our free India–UK time difference tool. It uses the same time zone data as this guide. Planning to call the USA or Canada as well? Read how to calculate the time difference between India and the USA and our guide to the India–Canada time gap in 2026. All our calculators are on the tools page. If you are flying to the UK for the first time, see our first-time international travel tips as well.

Frequently asked questions

What is the time difference between the UK and India?

India is 4 hours 30 minutes ahead of the UK while the UK is on British Summer Time, and 5 hours 30 minutes ahead while the UK is on Greenwich Mean Time. In 2026 the change happens on 25 October, and in 2027 on 28 March.

What is the UK to India time difference in winter?

From 25 October 2026 to 27 March 2027 the UK is on GMT, so India is 5 hours 30 minutes ahead. For example, 12:00 noon in London is 5:30 PM in India.

Is India ahead of or behind the UK?

India is ahead of the UK all year. When it is morning in the UK, it is already afternoon or evening in India.

What time is 9 AM UK time in India?

9:00 AM in the UK is 1:30 PM in India in summer (BST) and 2:30 PM in India in winter (GMT).

What time is 5 PM IST in the UK?

5:00 PM in India is 12:30 PM in the UK in summer (BST) and 11:30 AM in winter (GMT).

Is the time in Cheltenham, Scotland or Wales different from London?

No. England, Scotland, Wales and Northern Ireland all use the same time, so the gap from India is the same for every UK city.

When do UK clocks change in 2026 and 2027?

UK clocks go back one hour on Sunday 25 October 2026 at 2:00 AM and forward one hour on Sunday 28 March 2027 at 1:00 AM. They go back again on Sunday 31 October 2027.

Does Ireland have the same time as the UK?

Yes. The Republic of Ireland uses the same clock as the UK all year, so the gap from India is the same as for the UK.

Sources and how we checked

• GOV.UK: When do the clocks change?
• Wikipedia: British Summer Time
• Wikipedia: Indian Standard Time

The gaps and examples in this guide are calculated from the 2026 release of the IANA time zone database. UK clock dates (25 October 2026, 28 March 2027 and 31 October 2027) are from GOV.UK. This guide is general information. For visa, flight or legal deadlines, always use the official source. Last updated 11 October 2026.

Varinder Kaur

Varinder Kaur is from Amritsar, India. She has traveled to well-known places across India, including Darjeeling, and to a few countries abroad, and shares travel experiences and practical tips for travelers through OpinionHook.