Best overlap: 8:30 AM to 12:30 PM in Edinburgh is 2:00 PM to 6:00 PM in Hyderabad.
Your window to reach both cities is 8:30 AM to 12:30 PM in Edinburgh, which converts to 2:00 PM to 6:00 PM in Hyderabad. The overlap sits at about 4 hours; aim for the heart of it so the call isn't too early for one team or too late for the other. The difference isn't constant year-round: Edinburgh adjusts for daylight saving while Hyderabad holds steady.
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. -