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  2. 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.

  3. History of DST in the United States. 1916–1966: Early, inconsistent use. 1967–1972: Federal standard established. 1973–1975: Year-round experiment. 1975–1986: Extension of daylight saving time. 2005–2009: Second extension. 2015–2024: Proposals for the introduction of year-round DST. Procedure for modifications. Changing an area's time zone.

  4. Apr 19, 2024 · Several countries, including Australia, Great Britain, Germany, and the United States, adopted summer Daylight Saving Time during World War I to conserve fuel by reducing the need for artificial light.

    • Jonathan D. Betts
  5. Nov 4, 2022 · More than a third of U.S. states now back a permanent shift to daylight saving time. If that happens, it would be a final victory for a plan that businesses have praised for more than 100...

  6. Mar 6, 2014 · Learn how daylight saving time was invented by an entomologist in New Zealand and adopted by several countries during World Wars. Find out why it is still debated and how it affects energy use and schedules.

    • 1 min
  7. Mar 16, 2022 · Learn how the U.S. experimented with year-round daylight saving time in the mid-1970s, when Americans faced the prospect of long, dark winter mornings and safety concerns. Find out why the switch was reversed in 1974 and what are the current debates over DST today.

  8. Learn how Daylight Saving Time (DST) was first used in Canada in 1908 and how it spread to other countries and regions. Find out the origins, inventors, and advantages of DST, as well as its challenges and controversies.

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