| 词条 | Uniform Time Act |
| 释义 |
}}{{Infobox U.S. legislation | shorttitle = Uniform Time Act | othershorttitles = | longtitle = An Act to promote the observance of a uniform system of time throughout the United States. | colloquialacronym = | nickname = Uniform Time Act of 1966 | enacted by = 89th | effective date = April 13, 1966 | public law url = http://www.gpo.gov/fdsys/pkg/STATUTE-80/pdf/STATUTE-80-Pg107.pdf | cite public law = 89-387 | cite statutes at large = {{usstat|80|107}} | acts amended = Standard Time Act of 1918 | acts repealed = | title amended = 15 U.S.C.: Commerce and Trade | sections created = {{Usc-title-chap|15|6|IX}} §§ 260–267 | sections amended = | leghisturl = | introducedin = Senate | introducedbill = {{USbill|89|S.|1404}} | introducedby = | introduceddate = | committees = | passedbody1 = House | passeddate1 = March 16, 1966 | passedvote1 = 292–93, in lieu of H.R. 6785 | passedbody2 = | passedas2 = | passeddate2 = | passedvote2 = | conferencedate = March 30, 1966 | passedbody3 = House | passeddate3 = March 30, 1966 | passedvote3 = 282–91 | agreedbody3 = | agreeddate3 = | agreedvote3 = | agreedbody4 = | agreeddate4 = | agreedvote4 = | passedbody4 = | passeddate4 = | passedvote4 = | signedpresident = Lyndon B. Johnson | signeddate = April 13, 1966 | unsignedpresident = | unsigneddate = | vetoedpresident = | vetoeddate = | overriddenbody1 = | overriddendate1 = | overriddenvote1 = | overriddenbody2 = | overriddendate2 = | overriddenvote2 = | amendments = | SCOTUS cases = }} The Uniform Time Act of 1966, {{USStatute|89|387|80|107|1966|04|13}}, was a Law of the United States to "promote the adoption and observance of uniform time within the standard time zones" prescribed by the Standard Time Act of 1918. Its intended effect was to simplify the official pattern of where and when daylight saving time (DST) is applied within the U.S. Prior to this law, each state had its own scheme for when DST would begin and end, and in some cases, which parts of the state should use it.[1] HistoryThe law, as originally written, required states that observe DST to begin it at 02:00 local time on the last Sunday in April, and to end it at 02:00 local time on the last Sunday in October of the same year and explicitly preempted all state laws related to daylight saving time per the weights and measures power given to Congress in Article 1, Section 8 of the U.S. Constitution. The law was later amended in 1986 to move the uniform start date for DST to the first Sunday in April (effective 1987). The latest amendment, part of the Energy Policy Act of 2005, extends DST by four or five weeks by moving the uniform start date for DST to the second Sunday in March and the end date to the first Sunday in November (effective 2007). The Department of Energy was required to report to Congress the impact of the DST extension by December 1, 2007 (nine months after the statute took effect). The report, released in October 2008, reported a nationwide electricity savings of 0.03% for the year of 2007.[2] SpecificationsThe law does not require that all states observe DST. Individual states may exempt themselves from DST and observe standard time year-round by passing a state law, provided:
Non-observersSee also
References1. ^{{cite web|title=The HIstory of Daylight Saving Time|url=http://news.nationalgeographic.com/news/2004/03/0330_040330_daylightsavings.html|publisher=National Geographic|accessdate=23 June 2012|author=Jennifer Vernon|date=March 31, 2006}} 2. ^Belzer, David B. (October 2008). Impact of Extended Daylight Saving Time on National Energy Consumption. U.S. Department of Energy. {{cite web |url=http://www1.eere.energy.gov/analysis/pdfs/epact_sec_110_edst_report_to_congress_2008.pdf |title=Archived copy |accessdate=2013-10-21 |deadurl=yes |archiveurl=https://web.archive.org/web/20130518104926/http://www1.eere.energy.gov/analysis/pdfs/epact_sec_110_edst_report_to_congress_2008.pdf |archivedate=2013-05-18 |df= }} 3. ^{{cite web|title=The History of Daylight Saving Time|url=http://news.nationalgeographic.com/news/2004/03/0330_040330_daylightsavings.html|publisher=National Geographic|accessdate=23 June 2012|author=Jennifer Vernon|date=March 31, 2006}} 4 : 1966 in law|89th United States Congress|United States federal energy legislation|Daylight saving time in the United States |
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