Newfoundland and Labrador
Observes DST. Clocks go forward at 02:00 Newfoundland Standard Time (NST) on the second Sunday in March and back at 02:00 Newfoundland Daylight Time (NDT) on the first Sunday in November.
No specific provincial exceptions noted in the federal table.
National Research Council Canada, “Time zones and daylight saving time” (Newfoundland row).
Nova Scotia
Observes DST. Clocks change at 02:00 Atlantic Standard Time (AST) in March and 02:00 Atlantic Daylight Time (ADT) in November, on the North American standard dates (second Sunday in March, first Sunday in November).
No federal note of provincial opt‑out regions.
NRC Canada DST table (Nova Scotia row).
Prince Edward Island
Observes DST, following the same dates and times as Nova Scotia (02:00 AST to 02:00 ADT, March–November).
No federal note of provincial exceptions.
NRC Canada DST table (Prince Edward Island row).
New Brunswick
Observes DST, with clocks changing at 02:00 AST in March and 02:00 ADT in November.
No federal note of provincial exceptions.
NRC Canada DST table (New Brunswick row).
Québec
Observes DST. Legal time is Eastern Standard Time (UTC‑5); clocks move forward to UTC‑4 on the second Sunday in March and return to UTC‑5 on the first Sunday in November.
Lower North Shore (Basse‑Côte‑Nord) uses Atlantic Standard Time all year and does not change clocks with the rest of Québec. The Minganie region (including Anticosti Island) stays on Eastern time, and Îles‑de‑la‑Madeleine and Listuguj observe Atlantic Daylight Time between March and November.
Gouvernement du Québec, “Changement d’heure (temps légal)”; NRC Canada DST table (Québec row and footnote 2).
Ontario
Observes DST. Most of the province uses Eastern time, changing at 02:00 Eastern Standard Time (EST) in March and 02:00 Eastern Daylight Time (EDT) in November.
Areas of Ontario west of 90° W longitude are in the Central Time Zone and change at 02:00 local time, per NRC footnote.
NRC Canada DST table (Ontario row and footnote 3).
Manitoba
Observes DST. Clocks change at 02:00 Central Standard Time (CST) to 02:00 Central Daylight Time (CDT) in March, and revert in November, on the standard North American dates.
No specific provincial exceptions are listed in the federal table.
NRC Canada DST table (Manitoba row).
Saskatchewan
Most of Saskatchewan does not change clocks and stays on Central Standard Time (CST) all year, as required by The Time Act; this effectively functions like “permanent standard time” for most of the province.
The Battle River (Lloydminster) Time Option area follows Mountain Standard Time (MST) in winter and observes DST in summer in line with Alberta, meaning clocks change there while the rest of Saskatchewan remains on CST year‑round.
Government of Saskatchewan, “Saskatchewan Time System”; NRC Canada DST table (Saskatchewan row and footnote 4).
Alberta
Observes DST under current federal listing. Clocks change at 02:00 Mountain Standard Time (MST) to 02:00 Mountain Daylight Time (MDT) on the second Sunday in March and revert on the first Sunday in November.
No provincial exceptions are noted in the NRC table. (As of April 2026, the province has announced plans to move to permanent daylight time, but the NRC table still reflects the standard DST regime.)
NRC Canada DST table (Alberta row).
British Columbia
As of March 8, 2026, most of B.C. has adopted permanent year‑round daylight time (“Pacific time” at UTC‑7). The province moved clocks ahead one last time on 8 March 2026 and will not move them back on 1 November 2026; this completes the transition to permanent DST.
Northeastern B.C. communities such as Dawson Creek, Fort St. John and Fort Nelson already observe MST (UTC‑7) all year and continue to do so, effectively matching the new provincial Pacific time offset. Southeastern communities in the East Kootenay and Golden regions continue to follow Alberta, switching between MST and MDT and therefore still observing seasonal DST.
Government of British Columbia, “Permanent daylight saving time”; NRC Canada DST table (B.C. row – legacy pattern prior to 2026 change).
Yukon
Does not observe seasonal DST. Since 1 November 2020, Yukon has stayed on Yukon Standard Time at UTC‑7 all year; residents “will no longer have to change their clocks twice a year.”
This permanent time is equivalent to what used to be Pacific Daylight Time; the territory no longer “falls back” in autumn.
Government of Yukon news release “Yukon to remain on permanent time”; NRC Canada DST table (Yukon footnote 6).
Northwest Territories
Observes DST. Follows Mountain Time with clocks changing at 02:00 MST to 02:00 MDT in March and back in November, on the standard North American dates.
No specific territorial DST exceptions are listed in the federal table.
NRC Canada DST table (Northwest Territories row).
Nunavut
Mostly observes DST. Nunavut spans three time zones (Mountain, Central and Eastern); in all three, clocks change at 02:00 local time on the second Sunday in March and first Sunday in November.
Southampton Island (including Coral Harbour) remains on Eastern Standard Time all year and does not change clocks.
NRC Canada DST table (Nunavut row and footnote 5).
