Best overlap: 8:00 AM to 10:00 AM in Edinburgh is 4:00 PM to 6:00 PM in Shanghai.
Shoot for 8:00 AM to 10:00 AM in Edinburgh; your Shanghai colleagues will see that as 4:00 PM to 6:00 PM. Shanghai is 8 hours ahead of Edinburgh. That's only 2 hours of overlap, so pair live calls with async follow-ups to make the most of it. Daylight saving complicates things slightly: Edinburgh observes it, Shanghai doesn't, so the difference flexes by an hour part of the year.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Edinburgh Europe/London | ||||||||||||||||||||||||
Shanghai Asia/Shanghai |
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. -