http://en.wikipedia.org/wiki/Daylight_saving_time
"Saving daylight was first mentioned in 1784 by Benjamin Franklin in a humorous letter[5] urging Parisians to save money by getting up earlier to use morning sunlight, thereby burning fewer candles in the evening. Franklin did not mention daylight saving time—he did not propose that clock time be changed. His letter was in the spirit of his earlier proverb "Early to bed and early to rise / Makes a man healthy, wealthy, and wise.""
Efectos económicos
In 2000 the daylight-saving effect implied an estimated one-day loss of $31 billion on U.S. stock exchanges.[16]
# ^ Mark J. Kamstra; Lisa A. Kramer; Maurice D. Levi (2000-09). "Losing sleep at the market: the daylight saving anomaly". The American Economic Review 90 (4): 1005-1011.
Efectos energéticos
The U.S. Dept. of Transportation (DOT) concluded in 1975 that DST might reduce the country's electricity usage by 1% during March and April.[10]
However, DST can sometimes increase energy consumption and peak demand, and the rise of air conditioning calls older energy models into question. In 2000 when parts of Australia began DST in late winter, overall electricity consumption did not decrease, but the morning peak load increased.[11] Currently there is no clear evidence that electricity will be saved by the 2007 U.S. rule change.[12][13]
Efectos en accidentes de tráfico
In 1975 the DOT also conservatively identified a 0.7% reduction in traffic fatalities during DST, and estimated the real reduction to be 1.5% to 2%. In 1995 the Insurance Institute for Highway Safety estimated an overall reduction of 1.2%, including a 5% reduction in crashes fatal to pedestrians.[18]
Susan A. Ferguson; David F. Preusser; Adrian K. Lund; Paul L. Zador; Robert G. Ulmer (1995-01). "Daylight saving time and motor vehicle crashes: the reduction in pedestrian and vehicle occupant fatalities". American Journal of Public Health 85 (1): 92-95. PMID 7832269.
Efectos sobre el crimen
In the 1970s the U.S. Law Enforcement Assistance Administration (LEAA) found a reduction of 10% to 13% in Washington, D.C.'s violent crime rate during DST. However, the LEAA did not filter out other factors, and it examined only two cities and found crime reductions only in one and only in some crime categories; the DOT decided it was "impossible to conclude with any confidence that comparable benefits would be found nationwide."[22] While outdoor lighting makes potential crime victims feel safer, it may actually encourage crime.[23]
^ B.A.J. Clark (2003). "Outdoor lighting and crime, part 2: coupled growth". Astronomical Society of Victoria.
Efectos de nuevos cambios
Los últimos cambios que ha introducido EEUU (ha adelantado el cambio de hora) ha provocado que todos los ordenadores hayan necisitado adaptarse => Efecto 2007
http://en.wikipedia.org/wiki/Y2K7
Efectos sociales
Social choice
Having almost everyone agree about the layout of the day confers so many advantages that a standard DST schedule usually outranks ad hoc efforts to get up earlier, even if you personally dislike the schedule.[31] However, critics of standardizing DST "detect the bony, blue-fingered hand of Puritanism, eager to push people into bed earlier, and get them up earlier, to make them healthy, wealthy and wise in spite of themselves."[32]
# ^ Thomas C. Schelling [1972] (2006). "Hockey helmets, daylight saving, and other binary choices", Micromotives and Macrobehavior. W. W. Norton. ISBN 0-393-32946-1.
Creo que con todos estos argumentos merece muchísimo la pena
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