london to ist Time Converter

LONDON (London) → India Standard Time

london = UTC+1ist = UTC+5:30

⚠️ ist is ambiguous — on this page it means India Standard Time. It also refers to:

Ireland Standard Time (Dublin) → ist ↗Israel Standard Time (Jerusalem) → ist ↗

ClockinSync

🔒🔒🔒

LondonBASE

09:00

Install Chrome Extension — Free

00:0006:0012:0018:0024:00

IST (Mumbai)

India · +4.5h

13:30

New York

USA · -5h

04:00

Tokyo

Japan · +8h

17:00

Dubai

United Arab Emirates · +3h

12:00

Sydney

Australia · +9h

18:00

Time difference: London and IST (Mumbai)

London is 5 hours 30 minutes behind IST (Mumbai). When it's noon in London, it's 16:00 in IST (Mumbai).

London is in the Europe/London timezone. IST (Mumbai) is in the Asia/Kolkata timezone. The difference is 4.5 hours 30 minutes.

Working hours overlap

Both London and IST (Mumbai) are simultaneously in business hours for 3.5 hours per day (assuming standard 9:00–17:00 working hours).

00:0006:0012:0018:0024:00

London

IST (Mumbai)

Overlap (3.5h)

Best times to schedule a meeting

London and IST (Mumbai) share 3.5 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full overlap window.

09:00 London / 13:00 Mumbai✓ Both working

10:00 London / 14:00 Mumbai✓ Both working

11:00 London / 15:00 Mumbai✓ Both working

Based on standard 09:00–17:00 working hours in each city's local time.

Public holidays this year

London9 holidays

May 4Early May Bank HolidaySOON

May 25Spring Bank Holiday

Jun 15World Cup Bank Holiday

Jul 13Battle of the Boyne

Aug 3Summer Bank Holiday

IST (Mumbai)

No upcoming public holidays this year.

Scheduling between London and IST (Mumbai)

Coordinating between London (United Kingdom) and IST (Mumbai) (India) means working around a 4.5-hour time difference, with IST (Mumbai) ahead. The 3.5-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.

💡 Practical scheduling guidelines

✅

If you are in London, aim for 09:00–10:00, which corresponds to 13:00–14:00 in IST (Mumbai) — both teams are within working hours.

✅

If you are in London, aim for 10:00–11:00, which corresponds to 14:00–15:00 in IST (Mumbai) — both teams are within working hours.

✅

If you are in London, aim for 11:00–12:00, which corresponds to 15:00–16:00 in IST (Mumbai) — both teams are within working hours.

Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.

Install ClockinSync Free →

Use the time slider above to find the exact equivalent time for any moment in London. The input bar accepts natural language like “3pm”, “15:30”, or “9am Rome” for instant conversions.

london (London) ↔ ist (Mumbai)

4 hours of business hours overlap daily (09:00–17:00)

london (London)

ist (Mumbai)

00:00

04:30

01:00

05:30

02:00

06:30

03:00

07:30

04:00

08:30

05:00

09:30Working

06:00

10:30Working

07:00

11:30Working

08:00

12:30Working

09:00Working

13:30Working

10:00Working

14:30Working

11:00Working

15:30Working

12:00Working

16:30Working

13:00Working

17:30off

14:00Working

18:30off

15:00Working

19:30off

16:00Working

20:30off

17:00

21:30

18:00

22:30

19:00

23:30

20:00

00:30+1d

21:00

01:30+1d

22:00

02:30+1d

23:00

03:30+1d

Working hours: 09:00–17:00 local time. Green = both cities working. Purple = one city only.

Frequently Asked Questions

What is the difference between london and ist?

LONDON (London) (london) is UTC+1 and India Standard Time (ist) is UTC+5:30. The difference between them is 4.5 hours.

Where is london used?

LONDON (London) (london) is used in United Kingdom and surrounding regions. The IANA timezone identifier is Europe/London.

Where is ist used?

India Standard Time (ist) is used in India and surrounding regions. The IANA timezone identifier is Asia/Kolkata. Note: ist is ambiguous and may refer to other timezones.

How do I convert london to ist?

Use the interactive converter above. Drag the time slider to any london time and the ist equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular london conversions

LONDON → New York LONDON → Tokyo LONDON → Dubai LONDON → Sydney LONDON → Paris LONDON → Berlin LONDON → Singapore LONDON → Los Angeles LONDON → Toronto LONDON → Mumbai

Popular ist conversions

London → IST New York → IST Tokyo → IST Dubai → IST Sydney → IST Paris → IST Berlin → IST Singapore → IST Los Angeles → IST Toronto → IST