Daylight saving time in Canada

In Canada, daylight saving time (DST) is observed in eight of the country's ten provinces and two of its three territories—though with exceptions in parts of several provinces and Nunavut.

Under the Canadian Constitution, laws related to timekeeping are a provincial and territorial matter. Most of Saskatchewan, despite geographically being in the Mountain Time Zone, observes year-round Central Standard Time (CST). This results in the province effectively being on year-round daylight saving time. In 2020, Yukon abandoned seasonal time change and moved to permanently observe year-round UTC−7. In 2026, British Columbia decided to move to a permanent Pacific Time (essentially year-round Pacific Daylight Time). This change came into effect on March 8, 2026, when the province moved to Pacific Daylight Time permanently; the provincial government announced it would not move back to Pacific Standard Time that November, when daylight saving time ends for the year in Canada and the US.

In the regions of Canada that use daylight saving time, it begins on the second Sunday of March at 2 a.m. and ends on the first Sunday in November at 2 a.m. As a result, daylight saving time lasts in Canada for a total of 34 weeks (238 days) every year, about 65 percent of the entire year.