London to Toronto time: difference and best time to call

How to read it

London and Toronto, side by side

Each row is one city's day, half an hour to a square, lined up by the hours along the bottom.

A

London

Toronto

London time

00:0003:0006:0009:0012:0015:0018:0021:00

Toronto time

19:0022:0001:0004:0007:0010:0013:0016:00

Filled: at the desk, 9:00 to 18:00 where that city is.
Grey: up early, up late, or the weekend.
Outline: asleep.
Red band: your slot. Read straight down to see the same moment in every city.
A marks the best time for everyone; B, when there is one, the next best.

The red band is the best time to call on Wed, 21 Oct 2026: 14:00–15:00 in London, which is 09:00–10:00 in Toronto.

Through the year

How the gap between London and Toronto moves

Toronto is 5h behind London today. Daylight saving moves it:

5h

Toronto 5h behind London
Toronto 4h behind London

Sun, 25 Oct 2026 London's clocks go back an hour. Toronto is then 4h behind London.
Sun, 1 Nov 2026 Toronto's clocks go back an hour. Toronto is then 5h behind London.
Sun, 14 Mar 2027 Toronto's clocks go forward an hour. Toronto is then 4h behind London.
Sun, 28 Mar 2027 London's clocks go forward an hour. Toronto is then 5h behind London.

Hour by hour

London to Toronto time, hour by hour

On a working day (Wed, 21 Oct 2026), with working hours of 9:00 to 18:00 in both cities.

London starts work 09:00 04:00 in Toronto Asleep
Toronto starts work 09:00 14:00 in London At desk
London finishes work 18:00 13:00 in Toronto At desk
Toronto finishes work 18:00 23:00 in London Asleep

Show all 24 hours

London	Toronto
00:00 Asleep	19:00 Tue Late
01:00 Asleep	20:00 Tue Late
02:00 Asleep	21:00 Tue Late
03:00 Asleep	22:00 Tue Asleep
04:00 Asleep	23:00 Tue Asleep
05:00 Asleep	00:00 Asleep
06:00 Asleep	01:00 Asleep
07:00 Early	02:00 Asleep
08:00 Early	03:00 Asleep
09:00 At desk	04:00 Asleep
10:00 At desk	05:00 Asleep
11:00 At desk	06:00 Asleep
12:00 At desk	07:00 Early
13:00 At desk	08:00 Early
14:00 At desk	09:00 At desk
15:00 At desk	10:00 At desk
16:00 At desk	11:00 At desk
17:00 At desk	12:00 At desk
18:00 Late	13:00 At desk
19:00 Late	14:00 At desk
20:00 Late	15:00 At desk
21:00 Late	16:00 At desk
22:00 Asleep	17:00 At desk
23:00 Asleep	18:00 Late

Questions

Questions people ask

What is the time difference between London and Toronto?

Toronto is 5h behind London (as of Wed, 21 Oct 2026). That changes on Sun, 25 Oct 2026, when London's clocks go back: then Toronto is 4h behind London.

What is the best time for a call between London and Toronto?

On a working day, the best time for a call is 14:00–15:00 in London (09:00–10:00 in Toronto) until 24 Oct 2026 and from 1 Nov 2026 to 13 Mar 2027 and from 28 Mar 2027, and 13:00–14:00 in London (09:00–10:00 in Toronto) from 25 Oct 2026 to 31 Oct 2026 and from 14 Mar 2027 to 27 Mar 2027.

Does London change its clocks?

Yes. London moves its clocks back an hour on Sun, 25 Oct 2026, and forward an hour on Sun, 28 Mar 2027.

Does Toronto change its clocks?

Yes. Toronto moves its clocks back an hour on Sun, 1 Nov 2026, and forward an hour on Sun, 14 Mar 2027.

More city pairs

Compare more cities

All 190 city pairs

From the team behind 10:10

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London and Toronto: time difference and the best time to call