Live · calculated from the IANA time-zone database
Time difference between London and Toronto
Short answer
Toronto is 4 hours behind London. Right now it is 14:36 in London (GMT, UTC±0) and 10:36 in Toronto (EDT, UTC−4).
Right now
London · United Kingdom
14:36
Friday, October 30, 2026
Greenwich Mean Time · GMT · UTC±0
Toronto · Canada
10:36
Friday, October 30, 2026
Eastern Daylight Time · EDT · UTC−4
Times at the moment this page was generated. Reload for a fresh reading.
Does the difference between London and Toronto change during the year?
Yes. For 337 days of 2026 the difference is 5 hours, but it moves whenever London or Toronto enters or leaves daylight saving time. Here is the full 2026 calendar (dates in UTC):
| From | Until | Toronto vs London |
|---|---|---|
| January 1 | March 8 | −5 h |
| March 8 | March 29 | −4 h |
| March 29 | October 25 | −5 h |
| October 25 | November 1 | −4 h |
| November 1 | December 31 | −5 h |
The highlighted row is the current period. Every date comes from each zone's official rules, not from a hand-typed table.
Best time to call Toronto from London (and vice versa)
The window in which both cities are inside their 9:00–17:00 working day runs from 13:00 to 17:00 in London, which is 09:00 to 13:00 in Toronto: 4 hours of overlap per day. For a call that disturbs nobody, aim for the middle of that window.
Outside that window, the practical rule: mornings in London are afternoons in Toronto. Avoid any hour that falls before 8:00 or after 21:00 in either city.
London to Toronto conversion table
Each London hour and its equivalent in Toronto today. Rows shaded green are working hours (9:00–17:00) in both cities at once.
| London time · Fri, Oct 30 | Toronto time |
|---|---|
| 00:00 | 20:00previous day |
| 01:00 | 21:00previous day |
| 02:00 | 22:00previous day |
| 03:00 | 23:00previous day |
| 04:00 | 00:00 |
| 05:00 | 01:00 |
| 06:00 | 02:00 |
| 07:00 | 03:00 |
| 08:00 | 04:00 |
| 09:00 | 05:00 |
| 10:00 | 06:00 |
| 11:00 | 07:00 |
| 12:00 | 08:00 |
| 13:00 | 09:00 |
| 14:00 | 10:00 |
| 15:00 | 11:00 |
| 16:00 | 12:00 |
| 17:00 | 13:00 |
| 18:00 | 14:00 |
| 19:00 | 15:00 |
| 20:00 | 16:00 |
| 21:00 | 17:00 |
| 22:00 | 18:00 |
| 23:00 | 19:00 |
Looking for it the other way round? This page covers both directions: Toronto to London is the same difference with the sign flipped.
The two time zones
London — Europe/London
London sits on the Greenwich meridian: GMT (UTC+0) in winter and British Summer Time (UTC+1) from the last Sunday of March to the last Sunday of October.
Toronto — America/Toronto
Toronto shares Eastern Time with New York (UTC−5 / UTC−4 in summer) and changes clocks on the same dates, so the two cities never drift apart.
Frequently asked questions
How many hours difference between London and Toronto?
Toronto is 4 hours behind London. For most of the year (337 days) the difference is 5 hours; it shifts during the weeks when one of the two cities enters or leaves daylight saving time.
When it is 12:00 noon in London, what time is it in Toronto?
08:00 in Toronto (at today's difference of 4 hours).
What is the best time for a meeting between London and Toronto?
Between 13:00 and 17:00 in London, which is 09:00–13:00 in Toronto: 4 hours of overlap inside both cities' 9:00–17:00 working day.
Do London and Toronto observe daylight saving time?
London: yes. Toronto: yes. Both change, but not necessarily on the same dates — see the transitions section on this page.
What time zone is London in? And Toronto?
London: Greenwich Mean Time (Europe/London, UTC±0). Toronto: Eastern Daylight Time (America/Toronto, UTC−4).
Tools
Meeting grid — add both cities and click a slot
Time zone converter — any city, any time
Working hours overlap calculator
Daylight saving time 2027 — all dates
More time differences from London
More time differences from Toronto
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