London uses America/Toronto — UTC-05:00 (EST) in standard time and UTC-04:00 (EDT) during daylight saving time. It is located in Ontario, Canada. The live clock shows the current local time and updates every second.
Everything you need to know about London's time zone, UTC offset, and Daylight Saving Time schedule.
London uses UTC-05:00 in standard time. This is the offset used outside the daylight saving period.
UTC-04:00 (EDT) during daylight saving time. Clocks move forward one hour in spring and back one hour in autumn.
The official IANA time zone name for London is America/Toronto. This identifier is used in programming, operating systems and calendar applications worldwide.
Spring forward: 08 March 2026 at 02:00 → 03:00
Fall back: 01 November 2026 at 02:00 → 01:00
Spring forward: 14 March 2027 at 02:00 → 03:00
Fall back: 07 November 2027 at 02:00 → 01:00
Spring forward: 12 March 2028 at 02:00 → 03:00
Fall back: 05 November 2028 at 02:00 → 01:00
Spring forward: 11 March 2029 at 02:00 → 03:00
Fall back: 04 November 2029 at 02:00 → 01:00
Toronto, Montreal, Ottawa, Mississauga, Brampton
Currency: Canadian Dollar (CAD). Calling code: +1. Languages: English, French.
London is a city in Southwestern Ontario, Canada, along the Quebec City–Windsor Corridor. The city had a population of 422,324 according to the 2021 Canadian census. London is at the confluence of the Thames River and North Thames River, approximately 200 kilometres (120 mi) from both Toronto and Detroit; and about 230 km (140 mi) from Buffalo.
The city of London is politically separate from Middlesex County, though it remains the county seat.
London and the Thames were named after the English city and river in 1793 by John Graves Simcoe, who proposed the site for the capital city of Upper Canada. The first European settlement was established between 1801 and 1804 by Peter Hagerman. The village was founded in 1826 and incorporated in 1855.
Since then, London has grown to be the largest southwestern Ontario municipality and Canada's 11th largest metropolitan area with a population of 543,551 according to the 2021 Canadian census, having annexed many of the smaller communities that surround it.
Source: Wikipedia contributors — London, Ontario. Adapted text is available under CC BY-SA 4.0; see licence details. Reviewed by the TimeZoria AI Editorial Team.
422,324 residents (GeoNames city population; metro areas may be larger).
Ontario, Canada.
America/Toronto · UTC-05:00 (EST).
Observes DST.
Canadian Dollar (CAD) · +1.
Kitchener, Hamilton, Burlington
London International Airport (YXU) about 8.8 km from the city coordinates. Source: OurAirports (public domain).
2024 averages: daily highs 15.0°C and lows 5.9°C. Warmest month: July (average high 26.6°C); coolest month: January (average low -5.4°C). Source: Open-Meteo (CC BY 4.0).
London's economy is dominated by medical research, financial services, manufacturing, and information technology. Much of the life sciences and biotechnology related research is conducted or supported by the University of Western Ontario (partly through the Robarts Research Institute), which adds about C$1.5 billion to the London economy annually. Source: Wikipedia contributors · CC BY-SA 4.0 (adapted).
Region: Ontario · IANA zone: America/Toronto · Open data sources and licence details: TimeZoria AI licenses.
Current time in major cities compared to London. Times update live every second.
Note on DST transitions: The offsets shown above reflect the current live offset, which changes twice a year due to Daylight Saving Time. Different regions change their clocks on different dates, which means the difference between London and another city can vary by 1 hour for a short period in spring and autumn. Always verify the exact time difference around DST transition dates for critical scheduling.
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London's time zone affects business hours, travel plans and international calls. The America/Toronto zone is used for local scheduling, transport and everyday life in Ontario.
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Common questions about London's time zone, UTC offset, and DST.