Best overlap: 8:00 AM to 1:00 PM in Ottawa is 1:00 PM to 6:00 PM in Manchester.
Ottawa and Manchester overlap from 8:00 AM to 1:00 PM (Ottawa) to the equivalent 1:00 PM to 6:00 PM in Manchester — that's your meeting window. The overlap sits at about 5 hours; aim for the heart of it so the call isn't too early for one team or too late for the other.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ottawa America/Toronto | ||||||||||||||||||||||||
Manchester Europe/London |
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. -