Daylight Saving Time Begins March 9, Bringing Longer Evenings

The U.S. will spring forward this Sunday, marking the start of Daylight Saving Time, though debates about its impact and future continue.

Daylight Saving Time (DST) starts on Sunday, March 9, 2025, at 2 a.m., with clocks moving forward by one hour across most of the U.S.
The time change results in longer daylight hours in the evening but causes a loss of one hour of sleep that can disrupt circadian rhythms.
DST was originally introduced during World War I for energy conservation and standardized in the U.S. under the Uniform Time Act of 1966.
Critics argue that DST may not significantly save energy and cite health risks such as increased heart attacks, strokes, and accidents during the adjustment period.
Surveys show a majority of Americans support ending seasonal time changes, but legislative efforts to make DST permanent have stalled in Congress.