Time difference between London and Istanbul
Istanbul is 2 hours ahead of London. When it's 9:00 in London, it's 11:00 in Istanbul.
Istanbul is 2 hours ahead of London.
On Tuesday, 6 October 2026, 09:00 in London is 11:00 in Istanbul. London is UTC+1; Istanbul is UTC+3.
The gap through 2026
- 1 Jan – 29 MarIstanbul is 3 hours ahead of London.
- 29 Mar – 25 OctIstanbul is 2 hours ahead of London.
- 25 Oct – 31 DecIstanbul is 3 hours ahead of London.
- London moves its clocks forward on 29 March (UTC → UTC+1).
- London moves its clocks back on 25 October (UTC+1 → UTC).
London to Istanbul, hour by hour
On Tuesday 6 October.
| London | Istanbul |
|---|---|
| 07:00 Early morning | 09:00 Working hours |
| 08:00 Early morning | 10:00 Working hours |
| 09:00 Working hours | 11:00 Working hours |
| 10:00 Working hours | 12:00 Working hours |
| 11:00 Working hours | 13:00 Working hours |
| 12:00 Working hours | 14:00 Working hours |
| 13:00 Working hours | 15:00 Working hours |
| 14:00 Working hours | 16:00 Working hours |
| 15:00 Working hours | 17:00 Evening |
| 16:00 Working hours | 18:00 Evening |
| 17:00 Evening | 19:00 Evening |
| 18:00 Evening | 20:00 Evening |
| 19:00 Evening | 21:00 Evening |
| 20:00 Evening | 22:00 Sleeping hours |
| 21:00 Evening | 23:00 Sleeping hours |
| 22:00 Sleeping hours | 00:00+1 Sleeping hours |
Daylight saving in 2026
- London moves its clocks forward on Sunday 29 March (UTC → UTC+1).
- London moves its clocks back on Sunday 25 October (UTC+1 → UTC).
- 1 Jan – 29 MarIstanbul is 3 hours ahead of London.
- 29 Mar – 25 OctIstanbul is 2 hours ahead of London.
- 25 Oct – 31 DecIstanbul is 3 hours ahead of London.
Best times for a call
Working hours (09:00–17:00) overlap for 6 hours: 09:00–15:00 in London, which is 11:00–17:00 in Istanbul.
- London 09:00Working hoursIstanbul 11:00Working hours
- London 10:00Working hoursIstanbul 12:00Working hours
- London 11:00Working hoursIstanbul 13:00Working hours
More time differences for London and Istanbul
- New York and London
- Los Angeles and London
- Chicago and London
- Toronto and London
- London and Paris
- London and Berlin
- London and Dubai
- London and Karachi
- London and Mumbai
- London and Singapore
- London and Tokyo
- London and Sydney
- London and Seoul
- London and Beijing
- London and Shanghai
- London and Hong Kong
- London and Kuala Lumpur
- London and Jakarta
- London and Manila
- London and Bangkok
- London and Ho Chi Minh City
- London and Delhi
- London and Bengaluru
- London and Lahore
- London and Dhaka
- London and Colombo
- London and Abu Dhabi
- London and Riyadh
- London and Jeddah
- London and Doha
- London and Kuwait City
- London and Tel Aviv
How the time difference calculator works
The difference is each city's offset from UTC on the date you pick, subtracted. Offsets come from the IANA time zone database in your browser.
Because countries change their clocks on different dates — or not at all — the gap between two cities can change for a few weeks a year. The calculator lists every change in the year.
Examples
- London is 5 hours ahead of New York for most of the year, but only 4 hours ahead for about three weeks in March and one week in late October.
- Dubai doesn't change its clocks, so its gap to London is 4 hours in winter and 3 hours in summer.
Good for
- Knowing when a colleague's day starts
- Setting expectations for replies across time zones
- Planning travel and jet lag
Frequently asked questions
- What time is it in Istanbul when it's 9 AM in London?
- 11:00 AM — as of 6 October 2026. Istanbul is 2 hours ahead of London.
- Does the time difference between London and Istanbul change?
- Yes. In 2026 it's 3 hours or 2 hours, depending on the date, because only London changes its clocks.
- What's the best time for a call between London and Istanbul?
- Between 09:00 and 15:00 London time, when both cities are in working hours (09:00–17:00).
- What time zones are London and Istanbul in?
- London uses Europe/London (UTC+1 today); Istanbul uses Europe/Istanbul (UTC+3 today).
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