Best overlap: 4:00 PM to 6:00 PM in Taipei is 8:00 AM to 10:00 AM in Manchester.
Both teams are at their desks between 4:00 PM to 6:00 PM in Taipei and 8:00 AM to 10:00 AM in Manchester. The shared window is only 2 hours — treat 4:00 PM in Taipei (8:00 AM in Manchester) as the one fixed point and plan everything else around it. A quick caveat — Manchester's clocks move for daylight saving and Taipei's don't, so the times here are right for only part of the 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. -