It happens every year. So why do we all know someone who shows up an hour late the next day! When we change the clocks this Sunday it marks the final straw and winter sets in soon.

Most Canadians switch to Standard Time Sunday morning, except Saskatchewan.

Health Canada is reminding Canadians who rely on medical devices or systems with internal clocks to check their devices to ensure the clocks switch. The agency says medical equipment manufactured prior to 2007 may not function optimally if the equipment has not been updated by manufacturers to compensate for the new rules.

A Leger Marketing Survey commissioned by Eli Lilly Canada finds more than 50 per cent of Canadians will use the extra hour on Sunday to sleep, followed by 13 per cent who will spend time with friends and family.