Best overlap: 8:00 AM to 5:00 PM in Edinburgh is 9:00 AM to 6:00 PM in Barcelona.
Shoot for 8:00 AM to 5:00 PM in Edinburgh; your Barcelona colleagues will see that as 9:00 AM to 6:00 PM. Barcelona is 1 hour ahead of Edinburgh, but you'd hardly notice — 9 hours of shared hours makes this feel like working in neighbouring time zones.
| 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 | ||||||||||||||||||||||||
Barcelona Europe/Madrid |
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. -