Daylight saving time returns at 2:00 a.m. Sunday, March 10, 2013, when clocks across most of the jurisdictions in Canada will be set one hour ahead to 3:00 a.m. Daylight saving time takes place on the second Sunday in March and continues until the first Sunday in November. Update your computer and electronic calendar to avoid missing any important meetings or appointments! Take the time now to change the batteries in your smoke and carbon monoxide detectors.