Daylight saving time changes in 2007
Daylight savings time goes into effect sooner than what has been the usual practice in the United States. Starting this year, it begins at 2 a.m. Sunday and will end on Nov. 4. The Energy Policy Act of 2005, signed into law by President George Bush on Aug. 8, 2005, mandates the change. The theory behind the change is that longer daylight hours contribute to saving money on electricity, as people use less electrical lights when the sun is shining. Not only does the act change the dates of daylight saving time, it also mandates that the secretary of energy conduct a study of the impact on the act on energy consumption. The secretary's report to congress is due no later than nine months after the enactment date of the act. Additionally, congress retains the right to revert back to the previous mode of daylight savings time when the energy study is complete. The previous method of daylight savings time began on the first Sunday in April and concluded on the first Sunday in November.