What is the time difference between Ottawa and London?

Ottawa and London are in the same time zone offset, so there is no time difference between them.

When is the best time to schedule a meeting between Ottawa and London?

There are 9 overlapping business hours (9 AM–6 PM) between Ottawa and London. Scheduling during those hours ensures both parties are in their working day.

Is London ahead or behind Ottawa?

London is at the same time as Ottawa — both share the GMT-4 UTC offset.

What UTC offset does Ottawa use?

Ottawa uses the America/Toronto time zone, which is currently at GMT-4.

What UTC offset does London use?

London uses the Europe/London time zone, which is currently at GMT.

Does Daylight Saving Time affect the time difference between Ottawa and London?

The time difference shown is live and already accounts for any Daylight Saving Time (DST) currently in effect in either city. If one city observes DST while the other does not, the difference can change by up to 1 hour during DST transitions — typically in spring and autumn.

What is the time difference between Ottawa and London?

Ottawa and London are in the same time zone offset, so there is no time difference between them.

When is the best time to schedule a meeting between Ottawa and London?

There are 9 overlapping business hours (9 AM–6 PM) between Ottawa and London. Scheduling during those hours ensures both parties are in their working day.

Is London ahead or behind Ottawa?

London is at the same time as Ottawa — both share the GMT-4 UTC offset.

What UTC offset does Ottawa use?

Ottawa uses the America/Toronto time zone, which is currently at GMT-4.

What UTC offset does London use?

London uses the Europe/London time zone, which is currently at GMT.

Does Daylight Saving Time affect the time difference between Ottawa and London?

The time difference shown is live and already accounts for any Daylight Saving Time (DST) currently in effect in either city. If one city observes DST while the other does not, the difference can change by up to 1 hour during DST transitions — typically in spring and autumn.

Time Difference: Ottawa vs London

Ottawa (GMT-4) · London (GMT)

Ottawa

GMT-4

--:--:--

London

GMT

--:--:--

London and Ottawa are in the same UTC offset

Time Difference

Ottawa Offset

GMT-4

America/Toronto

London Offset

GMT

Europe/London

Summary

Ottawa and London share the same UTC offset

Business Hours Overlap (9 AM – 6 PM)

9 hours overlap during standard business hours in both cities.

Ottawa	London	Overlap
9 AM	9 AM	Business hours
10 AM	10 AM	Business hours
11 AM	11 AM	Business hours
12 PM	12 PM	Business hours
1 PM	1 PM	Business hours
2 PM	2 PM	Business hours
3 PM	3 PM	Business hours
4 PM	4 PM	Business hours
5 PM	5 PM	Business hours
6 PM	6 PM	Outside

Frequently Asked Questions

Compare other cities with Ottawa

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Compare other cities with London

New York vs London Tokyo vs London Paris vs London Berlin vs London Dubai vs London Singapore vs London Sydney vs London Toronto vs London

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