Highlighted rows fall within 09:00–18:00 in both places: 4 shared working hours.
Clock changes in London and Toronto
London
British Time (GMT)
Next clock change Sun 28 Mar 2027 (UTC+0 → UTC+1)
Toronto
Eastern Standard Time (EST)
Next clock change Sun 14 Mar 2027 (UTC−5 → UTC−4)
Time difference between London and Toronto today
At this moment Toronto is 5 hours behind of London. When it is 09:00 in London, it is 04:00 in Toronto. London is on British Time (GMT); Toronto is on Eastern Standard Time (EST).
When the London to Toronto time difference changes
For most of the year Toronto is 5 hours behind of London. From 14 March to 27 March 2027, Toronto is 4 hours behind of London instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
Dates
Toronto vs London
Length
1 November 2026 to 31 December 2026
5 hours behind
61 days
1 January 2027 to 13 March 2027
5 hours behind
72 days
14 March 2027 to 27 March 2027
4 hours behind
14 days
28 March 2027 to 30 October 2027
5 hours behind
217 days
31 October 2027 to 6 November 2027
4 hours behind
7 days
7 November 2027 to 31 December 2027
5 hours behind
55 days
Calling hours for London and Toronto
When Toronto is 5 hours behind of London: 3 shared office hours, 14:00 to 17:00 in London (09:00 to 12:00 in Toronto).
When Toronto is 4 hours behind of London: 4 shared office hours, 13:00 to 17:00 in London (09:00 to 13:00 in Toronto).
Frequently asked questions about London and Toronto time
What time is it in Toronto when it is 9:00 AM in London?
04:00 today; Toronto is 5 hours behind of London.
Does the time difference between London and Toronto change?
Yes. It is usually 5 hours behind, but changes when one side moves its clocks: 4 hours behind from 14 March to 27 March 2027; 4 hours behind from 31 October to 6 November 2027.