It was extended a couple of years ago to start earlier and end later.
Benjamin Franklin conceived of the idea.
The plan was not formally adopted in the U.S. until 1918. '
An Act to preserve daylight and provide standard time for the United States' was enacted on March 19, 1918.
Most of the
United States begins Daylight Saving Time at 2:00 a.m. on the second Sunday in March and reverts to standard time on the first Sunday in November. In the U.S., each time zone switches at a different time.
In the
European Union, Summer Time begins and ends at 1:00 a.m. Universal Time (Greenwich Mean Time). It begins the last Sunday in March and ends the last Sunday in October. In the EU, all time zones change at the same moment.
The official spelling is Daylight Saving Time,
not Daylight Saving
S Time.
In September 1999, the West Bank was on Daylight Saving Time while Israel had just switched back to standard time. West Bank terrorists prepared time bombs and smuggled them to their Israeli counterparts, who misunderstood the time on the bombs. As the bombs were being planted, they exploded--one hour too early--killing three terrorists instead of the intended victims--two busloads
.
Widespread confusion was created during the 1950s and 1960s when each U.S. locality could start and end Daylight Saving Time as it desired. One year, 23 different pairs of DST start and end dates were used in Iowa alone. For exactly five weeks each year, Boston, New York, and Philadelphia were not on the same time as Washington D.C., Cleveland, or Baltimore--but Chicago was. And, on one Ohio to West Virginia bus route, passengers had to change their watches seven times in 35 miles! The situation led to millions of dollars in costs to several industries, especially those involving transportation and communications. Extra railroad timetables alone cost the today's equivalent of over $12 million per year.
To keep to their published timetables, trains cannot leave a station before the scheduled time. So, when the clocks fall back one hour in October, all Amtrak trains in the U.S. that are running on time stop at 2:00 a.m. and wait one hour before resuming. Overnight passengers are often surprised to find their train at a dead stop and their travel time an hour longer than expected. At the spring Daylight Saving Time change, trains instantaneously become an hour behind schedule at 2:00 a.m., but they just keep going and do their best to make up the time
Following the 1973 oil embargo, the U.S. Congress extended Daylight Saving Time to 8 months, rather than the normal six months. During that time, the U.S. Department of Transportation found that observing Daylight Saving Time in March and April saved the equivalent in energy of 10,000 barrels of oil each day - a total of 600,000 barrels in each of those two years.
Likewise, in 1986, Daylight Saving Time moved 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. Adding the entire month of April to Daylight Saving Time is estimated to save the U.S. about 300,000 barrels of oil each year.
Beginning in 2007, Daylight Saving Time commenced on the second Sunday in March and ended on the first Sunday in November, thereby saving even more oil.
http://www.webexhibits.org/daylightsaving/index.html for more good stuff