Longueuil uses America/Toronto — UTC-05:00 (EST) in standard time and UTC-04:00 (EDT) during daylight saving time. It is located in Quebec, Canada. The live clock shows the current local time and updates every second.
Everything you need to know about Longueuil's time zone, UTC offset, and Daylight Saving Time schedule.
Longueuil 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 Longueuil 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.
Longueuil (French pronunciation: [lɔ̃ɡœj] ) is a city in the province of Quebec, Canada. It is the seat of the Montérégie administrative region and the central city of the urban agglomeration of Longueuil. It sits on the south shore of the Saint Lawrence River directly across from Montreal.
The population as of the Canada 2021 Census totalled 254,483, making it Montreal's second largest suburb, the fifth most populous city in Quebec and twentieth largest in Canada.
Charles Le Moyne founded Longueuil as a seigneurie in 1657. It would become a parish in 1845, a village in 1848, a town in 1874 and a city in 1920. Between 1961 and 2002, Longueuil's borders grew three times, as it was amalgamated with surrounding municipalities; there was a strong de-amalgamation in 2006 (see 2000–2006 municipal reorganization in Quebec).
Longueuil is a residential, commercial and industrial city. It incorporates some urban features, but is essentially a suburb. Longueuil can be classified as a commuter town as a large portion of its residents commute to work in Montreal. Most buildings are single-family homes constructed in the post-war period. The city consists of three boroughs: Le Vieux-Longueuil,...
Source: Wikipedia contributors — Longueuil. Adapted text is available under CC BY-SA 4.0; see licence details. Reviewed by the TimeZoria AI Editorial Team.
229,330 residents (GeoNames city population; metro areas may be larger).
Quebec, Canada.
America/Toronto · UTC-05:00 (EST).
Observes DST.
Canadian Dollar (CAD) · +1.
Montreal, Laval, Ottawa
Montreal / Pierre Elliott Trudeau International Airport (YUL) about 22 km from the city coordinates. Source: OurAirports (public domain).
2024 averages: daily highs 13.2°C and lows 4.8°C. Warmest month: July (average high 27.1°C); coolest month: February (average low -9.8°C). Source: Open-Meteo (CC BY 4.0).
Longueuil is particularly strong in the aerospace industry. It is home to the headquarters of both Pratt & Whitney Canada and Héroux-Devtek. Source: Wikipedia contributors · CC BY-SA 4.0 (adapted).
Region: Quebec · IANA zone: America/Toronto · Open data sources and licence details: TimeZoria AI licenses.
Current time in major cities compared to Longueuil. 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 Longueuil 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.
Ask any question about time, zones or conversions in natural language. The AI assistant will understand your query and provide a precise answer.
Ask: "What time is it in Madrid?" — The built-in assistant instantly provides the current time and offset without needing an API key.
AI knows over 600 IANA time zones and can answer questions about these zones.
Connect your own API keys (OpenAI, OpenRouter, Gemini, Anthropic, DeepSeek, Requesty) — full control.
Without an API key the module uses built-in zone logic — fast and delay-free.
Model is optional: leave it blank to use the provider default, or enter any model ID supported by the selected provider.
Longueuil'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 Quebec.
TimeZoria AI uses your browser's built-in Intl API and the IANA tz database to always display the correct Longueuil time — including DST changes — without any network requests.
Check the current time in other major cities — all on TimeZoria AI.
Common questions about Longueuil's time zone, UTC offset, and DST.