Best overlap: 10:00 AM to 6:00 PM in Istanbul is 8:00 AM to 4:00 PM in London.
10:00 AM to 6:00 PM in Istanbul is when London is also working, at 8:00 AM to 4:00 PM their time. The 2-hour gap barely gets in the way — you've got 8 hours of overlap, so pick whatever time fits the agenda. The window above shifts seasonally: London keeps daylight saving while Istanbul ignores it.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Istanbul Europe/Istanbul | ||||||||||||||||||||||||
London Europe/London |
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