Daylight saving time 2026: When does DST start in US and Canada? Date, time, why it matters and does it affect your health

America braces for Daylight Saving Time 2026 on March 8, shifting clocks forward and sparking renewed debate. While offering longer evenings, the biannual change disrupts sleep, raising health concerns like increased heart attacks and accidents. Economists also point to potential financial costs, fuelling a growing movement to end the practice.