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  2. History of time in the United States - Wikipedia

    en.wikipedia.org/wiki/History_of_time_in_the...

    The evolution of United States standard time zone boundaries from 1919 to 2024 in five-year increments. Plaque in Chicago marking the creation of the four time zones of the continental US in 1883 Colorized 1913 time zone map of the United States, showing boundaries very different from today Map of U.S. time zones during between April 2, 2006, and March 11, 2007.

  3. Standard time - Wikipedia

    en.wikipedia.org/wiki/Standard_time

    Historically, standard time was established during the 19th century to aid weather forecasting and train travel. Applied globally in the 20th century, the geographical regions became time zones. The standard time in each time zone has come to be defined as an offset from Universal Time. A further offset is applied for part of the year in ...

  4. Why Americans shifted, scrapped minutes and changed time ...

    www.aol.com/why-americans-shifted-scrapped...

    On Nov. 18, 1883, Americans adopted four standardized time zones, replacing a confusing, dangerous hodgepodge of times. Why Americans shifted, scrapped minutes and changed time forever 141 years ...

  5. Daylight saving time in the United States - Wikipedia

    en.wikipedia.org/wiki/Daylight_saving_time_in...

    During World War II between February 9, 1942 and September 30, 1945, Hawaiian Standard Time was advanced one hour to so-called Hawaiian War Time, effectively placing the territory on year-round daylight saving time. [67] In both cases where DST was used, Hawaii used UTC−09:30 during DST as standard time was 30 minutes behind.

  6. Daylight saving time: 10 interesting facts on why we set ...

    www.aol.com/daylight-saving-time-10-interesting...

    A 2016 Congressional Research Service report says the time change wasn’t adopted in the U.S. until 1918 with the bill “An Act to preserve daylight and provide standard time for the United ...

  7. Time in the United States - Wikipedia

    en.wikipedia.org/wiki/Time_in_the_United_States

    It is ultimately the authority of the secretary of transportation, in coordination with the states, to determine which regions will observe which of the standard time zones and if they will observe daylight saving time. [7] As of August 9, 2007, the standard time zones are defined in terms of hourly offsets from UTC. [8]

  8. Standard Time Act - Wikipedia

    en.wikipedia.org/wiki/Standard_Time_Act

    This article is about the U.S. statute. For the Irish statute, see Standard Time Act, 1968. For the New Zealand statute, see Standard Time Act 1945. Standard Time Act Long title An Act to save daylight and to provide standard time for the United States. Nicknames Calder Act Standard Time Act of 1918 Enacted by the 65th United States Congress Effective March 19, 1918 Citations Public law 65-106 ...

  9. Will daylight saving time or standard time be permanent? One ...

    www.aol.com/daylight-saving-time-standard-time...

    In 2018, while governor of Florida, Sen. Rick Scott signed legislation that would exempt Florida from the time change practice and allow the state to remain on daylight saving time year-round.