What is "Daylight Saving Time"?

According to Wikipedia, Daylight Saving Time (DST) is a system that is intended to "save daylight" in the summer. Therefore in the European system is known as "Summer Time". Official time moved forward (usually) one hour earlier than the official time zone and enforced during the spring and summer. It is intended to further adjust the clock when it was still light with hours of work and school activities. DST is typically used in areas where the temperature is moderate, due to the vast differences between the times brighter than the dark days of the season in these areas. People say that the system is Summer Time (WMP) was first proposed by Benjamin Franklin in a letter to the editor of the Journal of Paris. (Read the full text at [1].) But this article funny; Franklin did not propose instead that people wake up early and go to bed early. Origins of "Daylight Saving Time" This idea was first put forward in earnest by William Willett in the "Waste of Daylight", published in 1907, but he was not able to push the British government to adopt him, though he tried hard lobbying. Ideas Summer Time was first practiced by the German government during World War I between 30 April and 1 October 1916. Soon after Britain followed, first imposed WMP between May 21 and October 1, 1916. Then on March 19, 1918, Congress established several time zones (which are used by the railway network and most cities since 1883) and inaugurated the Summer Time (with effect from March 31) to World War I ended. The system was imposed for seven months in 1918 and 1919. However, this law was very unpopular (mostly because people have to get up and go to bed earlier than usual time) so that the law was revoked. "Daylight Saving Time 2013" United States and Canada will begin Daylight Saving Time (DST) period 2013 on Sunday, March 10, 2013. Millions of people will be required to change their clocks forward one hour of 2 AM (2:00) to 3 AM (3:00) local time and will end at 2:00 AM, Sunday, November 3, 2013. Some areas in the United States and Canada will not be affected by DST.