London: Greenwich Mean Time
London, United Kingdom uses the Europe/London time zone (GMT).
Sunday, March 28, 2027: clocks go forward 1 hour at 1:00 AM local time (UTC+0 → UTC+1).
London to Istanbul time
3 hours ahead of London
Istanbul compared with London, right now. Swap: Istanbul to London ⇄
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London to Istanbul conversion table
For Tuesday, November 3, 2026. Rows where both places are inside 9 AM–5 PM are highlighted.
| London | Istanbul |
|---|---|
| 12:00 AM | 3:00 AM |
| 1:00 AM | 4:00 AM |
| 2:00 AM | 5:00 AM |
| 3:00 AM | 6:00 AM |
| 4:00 AM | 7:00 AM |
| 5:00 AM | 8:00 AM |
| 6:00 AM | 9:00 AM |
| 7:00 AM | 10:00 AM |
| 8:00 AM | 11:00 AM |
| 9:00 AM | 12:00 PM |
| 10:00 AM | 1:00 PM |
| 11:00 AM | 2:00 PM |
| 12:00 PM | 3:00 PM |
| 1:00 PM | 4:00 PM |
| 2:00 PM | 5:00 PM |
| 3:00 PM | 6:00 PM |
| 4:00 PM | 7:00 PM |
| 5:00 PM | 8:00 PM |
| 6:00 PM | 9:00 PM |
| 7:00 PM | 10:00 PM |
| 8:00 PM | 11:00 PM |
| 9:00 PM | 12:00 AM (next day) |
| 10:00 PM | 1:00 AM (next day) |
| 11:00 PM | 2:00 AM (next day) |
About these time zones
Istanbul: Türkiye Standard Time
Istanbul, Türkiye uses the Europe/Istanbul time zone (UTC+3).
No clock change is scheduled; the offset stays the same all year.
Questions about London and Istanbul time
What is the time difference between London and Istanbul?
The current difference is shown at the top of this page. London uses Greenwich Mean Time (GMT, UTC+0) as standard time and British Summer Time (BST, UTC+1) during daylight saving time; Istanbul uses Türkiye Standard Time (UTC+3, UTC+3) all year. The difference can change if only one side observes daylight saving time or if their clocks change on different dates. Choose your meeting date in the converter to check the applicable offset.
When it is 9:00 AM in London, what time is it in Istanbul?
On Tuesday, November 3, 2026, 9:00 AM in London was 12:00 PM in Istanbul. The conversion table above shows today’s values.
Do the clocks change in London or Istanbul?
London: Sunday, March 28, 2027: clocks go forward 1 hour at 1:00 AM local time (UTC+0 → UTC+1). Istanbul does not change its clocks.
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