Best Meeting Time: Istanbul to London
🕐 Live Timezone Overlap: Istanbul & London
Istanbul sits at UTC+3 year-round, while London currently runs at UTC+1 during British Summer Time. That puts the two cities 2 hours apart, which is a comfortable gap by global standards. The 7-hour working-hours overlap means London teams can start calls from 9am and Istanbul colleagues are already well into their afternoon. One practical consideration: Istanbul's Friday culture, where lunch can extend for observant Muslim staff, makes Friday afternoon calls from London worth confirming in advance.
Time Difference: Istanbul and London
London is currently 2 hours behind Istanbul. The live offsets are Istanbul UTC+3 and London UTC+1. Istanbul does not observe daylight saving and London observes daylight saving, so the offset shifts twice a year if both sides aren't already aligned.
Istanbul does not observe DST. Turkey abolished the practice in 2016, so Istanbul stays fixed at UTC+3 all year. London does observe DST, moving between UTC+0 in winter and UTC+1 in summer. This means the gap between Istanbul and London shifts with the UK clock changes: 3 hours in winter (UTC+3 versus UTC+0), narrowing to 2 hours in summer (UTC+3 versus UTC+1). Anyone scheduling recurring calls between the two cities should update their invites each time UK clocks change.
Best Times to Meet
The working-hours overlap for Istanbul and London runs 7 hours: 11am to 6pm Istanbul time, which corresponds to 9am to 4pm in London. Inside that 7-hour window, the cleanest slot is typically 11am to 1pm Istanbul time (9am to 11am London). This avoids Istanbul's Friday extended lunches and also clears London's typical 12:30 to 1:30pm lunch break. London finance teams often hold informal meetings between 5pm and 6pm, so an Istanbul-side call at 7pm or 8pm is worth checking before proposing.
Working Hours Overlap Explained
Istanbul operates on Europe/Istanbul (currently UTC+3). London operates on Europe/London (currently UTC+1). The table below maps a standard 9:00 AM–6:00 PM day in Istanbul to London's local time.
| Istanbul time | London time | Status |
|---|---|---|
| 9:00 AM | 7:00 AM | London outside hours |
| 10:00 AM | 8:00 AM | London just starting |
| 11:00 AM | 9:00 AM | London in business hours |
| 12:00 PM | 10:00 AM | London in business hours |
| 1:00 PM | 11:00 AM | London in business hours |
| 2:00 PM | 12:00 PM | London in business hours |
| 3:00 PM | 1:00 PM | London in business hours |
| 4:00 PM | 2:00 PM | London in business hours |
| 5:00 PM | 3:00 PM | London in business hours |
| 6:00 PM | 4:00 PM | London in business hours |
Tips for Scheduling Across Istanbul and London
- Book Istanbul-to-London calls before 1pm Istanbul time to catch London at its most responsive, before lunch.
- Turkey abolished DST in 2016, so update recurring London-Istanbul calendar invites every time UK clocks change.
- Avoid scheduling calls with Istanbul on Eid al-Fitr or Eid al-Adha; these are major public holidays with unpredictable availability.
- London's City workers sometimes hold informal meetings between 5pm and 6pm local time, which falls 7pm to 8pm in Istanbul.
- During Ramadan, many Istanbul companies shorten their afternoons, so morning slots are more reliable for cross-city calls.
Public Holidays and Working Weeks
Both cities follow a Monday to Friday working week, with standard hours of 9am to 6pm. Istanbul's major closures include Republic Day on 29 October and the movable Eid al-Fitr and Eid al-Adha holidays. London's key dates include the May Bank Holiday on the first Monday in May and Christmas Day on 25 December. Teams coordinating between Istanbul and London should check both calendars before scheduling, as a working day in one city can fall on a public holiday in the other.