Daylight saving time (DST), also referred to as daylight saving (s), daylight savings time, daylight time (United States and Canada), or summer time (United Kingdom, European Union, and others), is the practice of advancing clocks to make better use of the longer daylight available during summer so that darkness falls at a later clock time.

Most of the United States observes daylight saving time (DST), the practice of setting the clock forward by one hour when there is longer daylight during the day, so that evenings have more daylight and mornings have less.

20 小时之前 · When does time change spring forward for DST 2025? In the U.S., clocks will officially spring forward at 2 a.m. Sunday, March 9, 2025. Do I gain or lose an hour of sleep for Daylight Savings Time ...

2025年1月11日 · Daylight Saving Time, system for uniformly advancing clocks, so as to extend daylight hours during conventional waking time in the summer months. In countries in the Northern Hemisphere, clocks are usually set ahead one hour in late March or in April and are set back one hour in late September or in October.

5 天之前 · The days are getting longer, and soon millions of people across the United States will see the clocks change as daylight saving time begins. Go Back Rain to drench, severe storms to rumble in ...

Daylight Saving Time (DST) in most of the United States starts on the second Sunday in March and ends on the first Sunday in November. Which States and Federal Districts use Daylight Saving Time in 2025

2010年3月2日 · What is daylight saving time? Daylight saving time, or DST, is the period of the year when clocks are moved one hour ahead. In the United States, this has the effect of creating more sunlit hours in the evening during months when the weather is the warmest.

2024年10月27日 · When does daylight saving time end in 2024? Daylight saving time will end for the year at 2 a.m. local time on Sunday, Nov. 3, when we "fall back" and gain an extra hour of sleep.

2025年1月2日 · Daylight Saving Time begins on Sunday, March 9, 2025, at 2:00 A.M. On Saturday night, clocks are set forward 1 hour (i.e., losing one hour) to “spring forward.” Sunrise and sunset will be about 1 hour later on March 9, 2025, than the day before. There will be more light in the evening.

Daylight Saving Time (DST) is the practice of setting the clocks forward one hour from standard time during the summer months, and back again in the fall, in order to make better use of natural daylight.