In the United States, Daylight Saving Time (DST) begins on the second Sunday of March and ends on the first Sunday of November. This means that in 2025, DST will begin on March 9 and end on November 2.
DST is a practice of advancing clocks during warmer months so that evenings have more daylight and mornings have less. The main benefit of DST is that it can save energy. When people have more daylight in the evenings, they are less likely to use artificial lighting, which can lead to lower energy bills. DST can also reduce traffic congestion and crime rates.