Overview

• Daylight Saving Time ends Sunday, Nov. 2 at 2 a.m. local time, when clocks are set back one hour to standard time.
• The shift moves an hour of daylight from evening to morning, leading to earlier sunsets and darker evening commutes, according to NIST.
• Most phones and computers will update automatically, but households should reset manual clocks and replace smoke and carbon monoxide detector batteries.
• DST is not observed in Hawaii, most of Arizona outside the Navajo Nation, American Samoa, Guam, Puerto Rico and the U.S. Virgin Islands.
• Federal rules unchanged for 2025 keep DST running from the second Sunday in March to the first Sunday in November.