Daylight saving time (DST) will end sooner than usual this year on Sunday, November 2, 2025, at 2:00 am local time.With it, Americans will have an extra hour of sleep, and also earlier sunsets in many regions. This year’s change is a day earlier than last year and is the second-earliest possible date for the shift since daylight saving time falls on the first Saturday in November, the earliest possible date is November 1. Daylight saving time, observed from March to November, was introduced to make better use of daylight. In spring, clocks are moved forward to extend evening daylight, while in autumn, clocks are set back to give more light in the mornings.Under current federal rules set by the Energy Policy Act of 2005, DST begins on the second Sunday in March and ends on the first Sunday in November. Next year, clocks will move forward again on Sunday, March 8, 2026. Most US states follow DST, but not all. Hawaii and most of Arizona do not observe the change, citing limited benefit due to their climates. The Navajo Nation, which spans parts of Arizona, Utah, and New Mexico, does observe DST to maintain consistent time across its territory. Five US territories, American Samoa, Guam, Northern Mariana Islands, Puerto Rico, and the US Virgin Islands, also do not follow DST.For most Americans, the clock change means an adjustment in daily routines. While extra evening daylight in spring is welcomed, the earlier sunsets in autumn can make mornings darker and evenings shorter, affecting commuting, outdoor activities, and daily schedules.