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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.
Establishing either permanent standard or daylight saving time (DST) eliminates the practice of semi-annual clock changes, specifically the advancement of clocks by one hour from standard time to DST on the second Sunday in March (commonly called "spring forward") and the retraction of clocks by one hour from DST to standard time on the first Sunday in November ("fall back").
The Uniform Time Act of 1966 established the system of uniform daylight saving time throughout the US. [1] In the U.S., daylight saving time starts on the second Sunday in March and ends on the first Sunday in November, with the time changes taking place at 2:00 a.m. local time. With a mnemonic word play referring to seasons, clocks "spring ...
When the Standard Time Act was signed into law March 19, 1918, daylight saving time became official. More daylight hours during the day would potentially help save energy costs during World War I.
The origins of daylight saving time. To trace the origins of daylight saving time, one needs to travel back to the 1880s, when more than 144 local time zones existed across the U.S. and most ...
In 2024, daylight saving time will begin at 2 a.m. on Sunday, March 10. You will move your clocks forward an hour and be losing on an hour worth of sleep. The sun will rise and set an hour later.
Daylight saving time was established by the Standard Time Act of 1918. The Act was intended to save electricity for seven months of the year, during World War I. DST was repealed in 1919 over a presidential veto, but standard time in time zones remained in law, with the Interstate Commerce Commission (ICC) having the authority over time zone boundaries.
When clocks go forward, that one hour of daylight is basically shifted from morning to evening as daylight saving time begins. We won't go back to standard time until Sunday, Nov. 3. How we got here