The Daylight Saving Time period for 2011 is coming close to its end. On November 6, people living in the United States will set their clocks one hour backwards.
According to the National Institute of Standards and Technology time will be reverted to the standard one at precisely 2 a.m. on Sunday 06.11, as decided by the Energy Policy Act in 2005. “We advance our clocks ahead one hour at the beginning of DST, and move them back one hour (“spring forward, fall back”) when we return to Standard Time”, the NIST rep stated.
Adding extra days to the Daylight Saving Time started in 2007 when the U.S. Energy Policy Act got installed. Then, for the first time, the clocks were reversed one hour not on the last Sunday of October but on the first one of November. The same act made changes for the DST as well moving it from second Sunday of March to first Sunday of April.
The actual energy savings that thesechanges bring are not the same all over the States. In the 1970s, when the Daylight Saving Time was first introduced, the savings summed up to a whole percentage of the national energy. Yet there are territories where the savings make little to none difference, like for example the state of California. However a study conducted by the U.S. Department of Energy in 2008 showed that the four extra daylight weeks actually enable energy savings of 1.3 trillion watt hours per day, which could provide as such the power needed for 100,000 houses for an entire year.
The use of DST started during the World War I first, in an attempt to conserve as much energy as possible. Furthermore, during the energy crisis in 1970s, mid World War II, the year round DST was introduced for the same purpose.
However regions like Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands and almost the entire Arizona state aren’t affected by this chance. Most people who live in Arizona don’t observe the time changes due to the extreme heat of the region. If the state would notice the Daylight Saving Time then the sun would stay up during the summer days till 9 p.m. instead of 8 p.m. like it does currently.