Daylight Saving Time Begins March 8, 2026, Amid Health Concerns

Daylight Saving Time in the United States begins at 2 a.m. on Sunday, March 8, 2026, when clocks move forward by one hour, extending evening daylight but reducing sleep duration. While most states observe this change, Hawaii, most of Arizona, and several U.S. territories do not. Originating from the Uniform Time Act of 1966, the practice aims to optimize daylight but has raised health concerns, including disrupted sleep patterns and increased risks of heart issues, according to scientists and health experts.