Business groups see hurdles as the time change ends in some regions

Western Canada

Most of British Columbia, Alberta, the Northwest Territories, Manitoba and parts of northwestern Ontario stay on year-round daylight time starting Sunday.

Where clocks still change

• Most of Ontario
• Quebec
• Atlantic Canada

Clocks still fall back in most of Ontario and Quebec and in Atlantic Canada, while Nunavut is weighing what to do.

“The biggest challenge that they’ll face is making sure that they’re maintaining alignment with customers and suppliers and employees, especially for businesses that operate or do business across provincial borders.”

— Keyli Loeppky, Canadian Federation of Independent Business

Come Sunday, a 7:30 p.m. flight from Vancouver would land in Toronto at 2 a.m. local time rather than 3 a.m. Airlines will need to adjust schedules so connections still work.