Canadians in most provinces will have the option of an extra hour of sleep this weekend as Daylight Saving Time ends for the year on Sunday, Nov. 2 at 2 a.m.

Clocks in all provinces but Saskatchewan are expected to “fall back” an hour on the first Sunday of November each year.

That means most people will turn their timepieces back one hour when they go to bed Saturday night.

Clocks will stay that way until the second Sunday of March, when they will be turned forward again.

Daylight Saving Time was implemented in most provinces in order to extend the amount of sunshine in the evenings hours of summer.

While most Canadians will gain sleep this weekend, they will lose afternoon light. For example, in Ottawa on Saturday, the sun will set at 5:50 p.m., while on Sunday it will go down at 4:49 p.m.

Saskatchewan stays on Standard Time all year. The province considered joining Daylight Saving Time in 2011 but an opinion poll commissioned by the government found that just over two-thirds of 1,000 people surveyed were against the idea.

Time change prompts reminders

Fire officials in some Canadian municipalities say the twice annual clock ritual is a good time to replace all the batteries in smoke alarms and carbon monoxide detectors, because doing so makes it easier to avoid forgetting.