Posted in Web Daylight Saving Time – When do we change our clocks? October 18, 2019 Most of the United States begins Daylight Saving Time at 2:00 a.m. on the second Sunday in March and reverts to standard time on the first Sunday in November. In the U.S., each time zone switches at a different time. http://www.webexhibits.org/daylightsaving/b.html