SocietyWhat to know about Canada’s complicated time change this weekend

Millions of Canadians will set their clocks back this weekend, while millions of others will leave them unchanged. Most of British Columbia, along with Alberta, Manitoba and the Northwest Territories, no longer changes clocks twice a year, as do Yukon and Saskatchewan. Most of Ontario, Quebec and the Atlantic provinces will still turn clocks back on Nov. 1. University of Calgary professor Michael Antle explains the divide.