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The idea of daylight saving time was first put into practice by the German government during the First World War between the 30th of April, 1916 and the 1st of October, 1916. Shortly afterwards, the United Kingdom followed suit, first adopting DST between the 21st of May, 1916 and the 1st of October, 1916. Then on March 19, 1918 the United States Congress established several time zones (which were already in use by railroads since 1883) and made daylight saving time official (which went into effect on March 31) for the remainder of World War I. It was observed for seven months in 1918 and 1919. The law, however, proved so unpopular (mostly because people rose earlier and went to bed earlier than in modern times) that the law was later repealed.
Daylight saving time was reinstated in the United States on February 9, 1942, again as a wartime measure to conserve resources, this time in order to fight World War II. This remained in effect until the war began winding down and the requirement was removed on September 30, 1945. From 1945 to 1966, there was no federal law about daylight saving time. States and localities were free to observe daylight saving time or not. The Uniform Time Act of 1966 created daylight saving time to begin on the last Sunday of April and to end on the last Sunday of October. Any area that wanted to be exempt from daylight saving time could do so by passing a local ordinance. The law was amended in 1986 to begin daylight saving time on the first Sunday in April. |
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Criticism of DST
DST is not universally accepted; many localities do not observe it. Nevertheless, proponents claim that DST helps more than it hurts. The primary claim is that it reduces energy consumption. Opponents claim that there's not enough benefit to justify needing to adjust clocks twice per year. The disruption in sleep patterns associated with setting clocks forward, and thereby "losing" an hour, correlates with a spike in the number of severe auto accidents, as well as emotional trauma. Campaigners in Britain would like the country to stay on British Summer Time (BST) all year round, or in other words, adopt Central European Time and abolish BST. Alternatively, some would like Britain to adopt Central European Time and jump forward another hour during the summer (adopting a Single/Double Summer Time from Britain's perspective). This would make winter evenings longer, thereby reducing traffic accidents and cases of seasonal affective disorder. Opponents point to the longer hours of darkness on winter mornings, especially in Scotland, which might well cause an increase in road accidents. It has even been suggested that Scotland should be placed on a different time zone from the rest of the UK, which does not seem likely to occur in the foreseeable future.
DST is particularly unpopular among people working in agriculture because the animals do not observe it, and thus the people are placed out of synchronization with the rest of the community, including school times, broadcast schedules, and the like. DST is a long-standing controversy in Indiana, not only as an agricultural state, but also because the meridian separating the eastern and central time zones divides the state. In the past, neighboring communities sometimes ended up one or even two hours apart. In the current compromise, the state has three kinds of time zone: 77 counties, most of the state, are on Eastern Standard Time but do not use DST; 7 counties near Chicago and 3 counties in the southwestern corner of the state are on Central Standard Time and do use DST; and 2 counties near Cincinnati, Ohio and 3 counties near Louisville, Kentucky are on Eastern Standard time but do use DST.
Embargo changes
During the Arab-Israeli War in October 1973, Middle East members of OPEC issued an embargo against the sale of crude oil to Israel's Western allies. In the United States, gasoline became scarce and prices jumped 40 percent, crimping the American economy. Following the 1973 Arab Oil Embargo, Congress put most of the nation on extended Daylight Saving Time for two years in hopes of saving additional energy. This experiment worked, but Congress did not continue the experiment in 1975 because of opposition -- mostly from the farming states. In 1974, Daylight Saving Time lasted ten months and lasted for eight months in 1975, rather than the normal six months (then, May to October).
Congress and President Reagan change Daylight Saving Time
Daylight Saving Time was changed slightly in 1986 when President Reagan signed Public Law 99-359. It changed Daylight Saving Time from the last Sunday in April to the first Sunday in April. No change was made to the ending date of the last Sunday in October. This was done ostensibly to conserve energy during the month of April. Adding the entire month of April is estimated to save nationwide about 300,000 barrels of oil each year. |
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