Turning Back Time: The Truth About Daylight Saving

Every autumn, millions of people across North America prepare to “fall back” by setting their clocks one hour earlier. While the ritual is familiar, the history and purpose of daylight saving time (DST) are often misunderstood.

Daylight saving time was first introduced during World War I as a way to conserve energy by making better use of natural daylight. The idea was simple: shift the clock forward in spring to extend evening light, then return to standard time in fall. Today, most of Canada, the United States, and Europe still follow this practice, though not without debate.

Since 2007, the U.S. and Canada have observed DST from the second Sunday in March until the first Sunday in November. That’s when the “fall back” happens—at 2:00 a.m., clocks are set back to 1:00 a.m., giving everyone an extra hour of sleep. However, not all regions participate: Hawaii, most of Arizona, and several Canadian provinces and territories remain on standard time year-round.

Supporters of DST argue it reduces energy use and encourages outdoor activity in the evenings. Critics counter that the disruption to sleep schedules outweighs any benefits, with studies linking the time change to health and safety risks. In fact, legislation has been proposed in both Canada and the U.S. to make either permanent standard time or permanent daylight time the norm, though no nationwide change has yet been adopted.

So, when you “fall back” this November, remember: it’s more than just an extra hour of rest—it’s a century-old tradition still sparking debate about how we measure time itself.