Time Difference between Ottawa and London

Ottawa, Canada and London, United Kingdom are separated by a time difference of 4 hours. When it's noon in Ottawa, it's 4 hours later in London.

Ottawa operates on America/Toronto timezone, while London uses Europe/London. Both cities may observe Daylight Saving Time at different dates, which can temporarily change the time difference by an hour.

Best Time to Call

To catch business hours in both cities, consider scheduling calls during early morning in Ottawa.

Flight Considerations

The distance between Ottawa and London is approximately 5,361 km. A direct flight typically takes around 7.3 hours. When traveling, remember that your arrival time will be in local time. Use our Flight Time Calculator for accurate arrival predictions.