Best overlap: 1:00 PM to 6:00 PM in Islamabad is 8:00 AM to 1:00 PM in Edinburgh.
The hours that work for both Islamabad and Edinburgh are 1:00 PM to 6:00 PM (Islamabad) and 8:00 AM to 1:00 PM (Edinburgh). The shared window is roughly 5 hours; treat its midpoint as the default and you'll keep both teams happy. Note the seasonal wrinkle: when Edinburgh is on daylight saving and Islamabad isn't, the gap between them grows or shrinks by an hour.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Islamabad Asia/Karachi | ||||||||||||||||||||||||
Edinburgh Europe/London |
London to New York is five hours apart, except for the five weeks a year when it isn't. Exact overlap windows for every US zone, the 2026 DST mismatch dates, and where to put the recurring sync. -