Best overlap: 1:45 PM to 6:45 PM in Kathmandu is 8:00 AM to 1:00 PM in Edinburgh.
Keep meetings inside 1:45 PM to 6:45 PM in Kathmandu — that maps to 8:00 AM to 1:00 PM in Edinburgh. Edinburgh is 5.75 hours behind Kathmandu, leaving about 5 hours of daily overlap — enough for most meetings if you don't leave them too late in the day. Keep an eye on the calendar — Edinburgh observes daylight saving and Kathmandu doesn't, which nudges this window by an hour twice a year.
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. -