day light savings
Energy efficient lighting is particularly important in the fall when Daylight Saving Time ends and the days are shorter. [1]
The end of Daylight Saving Time — this year scheduled for Sunday, Nov. 6 — makes people groan and complain, as the sun begins to set earlier and late afternoons grow dark, but researchers say that the return to natural rhythms can be healthy. [2]
Daylight Saving Time gives us the opportunity to enjoy sunny summer evenings by moving our clocks an hour forward in the spring. [3]
Daylight saving time, also know as daylight savings time, was enacted into law in 1918. [...] Spring ahead, fall back–this is how we are supposed to remember when to set our clocks for daylight saving time or DST. [4]
Benjamin Franklin first suggested Daylight Saving Time in 1784, but modern DST was not proposed until 1895 when an entomologist from New Zealand, George Vernon Hudson, presented a proposal for a two-hour daylight saving shift to the Wellington Philosophical Society. [5]
The common variants daylight savings time and daylight savings use savings by analogy to savings account. [6]
Roenneberg, lead researcher for a study of the effects of time shifts, said that humans’ biological clocks are stronger than the clocks set by Congress. [2]
The new start and stop dates were set in the Energy Policy Act of 2005. [1]
Although standard time in time zones was instituted in the U.S. and Canada by the railroads in 1883, it was not established in U.S. law until the Act of March 19, 1918, sometimes called the Standard Time Act. [7]
Germany was the first country to implement an official daylight saving time in order to conserve coal during World War I. It was not mandatory for all states to observe daylight savings time. [4]
In this ancient water clock, a series of gears rotated a cylinder to display hour lengths appropriate for each day’s date. [6]
Daylight saving time was repealed in 1919, but standard time in time zones remained in law. [...] On the first Sunday in November, clocks are set back one hour at 2:00 a.m. [...] Starting in 2007, daylight time begins in the United States on the second Sunday in March and ends on the first Sunday in November. [7]
Sources:
[1] Daylight Saving Time - Saving Time, Saving Energy
[2] Daylight Savings: Body Clocks Reset - ABC News
[3] About Daylight Saving Time - History, rationale, laws & dates
[4] Daylight Savings 2011 Ends in November - Associated Content from …
[5] What is Daylight Saving Time? - timeanddate.com
[6] Daylight saving time - Wikipedia, the free encyclopedia
[7] When Does Daylight Saving Time Begin and End?