Best overlap: 8:30 AM to 12:30 PM in Edinburgh is 2:00 PM to 6:00 PM in Chennai.
Edinburgh and Chennai overlap from 8:30 AM to 12:30 PM (Edinburgh) to the equivalent 2:00 PM to 6:00 PM in Chennai — that's your meeting window. The shared window is roughly 4 hours; treat its midpoint as the default and you'll keep both teams happy. Bear in mind Edinburgh shifts for daylight saving while Chennai stays fixed — recheck these hours after each clock change.
| 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 | ||||||||||||||||||||||||
Chennai Asia/Kolkata |
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. -