Time Difference Between Istanbul and London
London is 2h behind Istanbul.
This is the standard-time difference as of 2026. If either city observes daylight saving time, the actual difference can shift by up to an hour for part of the year — the live clocks below always show the current real-time difference.
Working Hours Overlap
For each hour of Istanbul's working day (9:00-18:00), here is the corresponding local time in London. Rows highlighted green fall within standard working hours (9:00-18:00) in both cities.
| Istanbul | London | Both working hours? |
|---|---|---|
| 9 AM | 7 AM | No |
| 10 AM | 8 AM | No |
| 11 AM | 9 AM | Yes |
| 12 PM | 10 AM | Yes |
| 1 PM | 11 AM | Yes |
| 2 PM | 12 PM | Yes |
| 3 PM | 1 PM | Yes |
| 4 PM | 2 PM | Yes |
| 5 PM | 3 PM | Yes |
| 6 PM | 4 PM | No |
Best Time to Meet
- 11 AM-6 PM in Istanbul (9 AM-4 PM in London) works for both sides — it falls within standard 9 AM-6 PM working hours in both time zones.
How the Difference Changes in 2026
Because the two cities change their clocks on different dates, the gap is not one number. Here is how London stands relative to Istanbul through 2026:
| Period | London vs Istanbul |
|---|---|
| Jan 1 – Mar 28 | 3h behind |
| Mar 29 – Oct 24 | 2h behind |
| Oct 25 – Dec 31 | 3h behind |
Istanbul keeps the same clock all year; London changes its clocks on Mar 29 (clocks forward) and Oct 25 (clocks back). Dates use the UTC calendar; the switch takes effect early that morning local time.
Istanbul
Istanbul uses the Europe/Istanbul IANA time zone, currently at UTC+3. This zone does not observe daylight saving time.
London
London uses the Europe/London IANA time zone, currently at UTC+1. This zone observes daylight saving time.