daylight saving time

(redirected from Day light saving)
Also found in: Wikipedia.

daylight saving time

(DST), time observed when clocks and other timepieces are set ahead so that the sun will rise and set later in the day as measured by civil timecivil time,
local time based on universal time. Civil time may be formally defined as mean solar time plus 12 hr; the civil day begins at midnight, while the mean solar day begins at noon.
..... Click the link for more information.
. The amount of daylight on a given dayday,
period of time for the earth to rotate once on its axis. The ordinary day, or solar day, is measured relative to the sun, being the time between successive passages of the sun over a stationary observer's celestial meridian.
..... Click the link for more information.
 of the year at a given latitude is fixed, but over the year the hours of sunrise and sunset vary from day to day. During the summer months, the sun rises earlier and sets later and there are more hours of daylight. If clocks and other timepieces are set ahead in the spring by some amount (usually one hour), the sun will rise and set later in the day as measured by those clocks. This provides more usable hours of daylight for activities that occur in the afternoon and evening, such as outdoor recreation. Daylight saving time can also be a means of conserving electrical and other forms of energy. In the fall, as the period of daylight grows shorter, clocks are set back to correspond to standard timestandard time,
civil time used within a given time zone. The earth is divided into 24 time zones, each of which is about 15° of longitude wide and corresponds to one hour of time. Within a zone all civil clocks are set to the same local solar time.
..... Click the link for more information.
.

Benjamin Franklin, when serving as U.S. minister to France, wrote an article recommending earlier opening and closing of shops to save the cost of lighting. In England, William Willett in 1907 began to urge the adoption of daylight saving time. During World War I the plan was adopted in England, Germany, France, and many other countries. In the United States, Robert Garland of Pittsburgh was a leading influence in securing the introduction and passage of a law (signed by President Wilson on Mar. 31, 1918) establishing daylight saving time in the United States. After World War I the law was repealed (1919). In World War II, however, national daylight saving time was reestablished by law on a year-round basis. National year-round daylight saving time was adopted as a fuel-saving measure during the energy crisis of the winter of 1973–74. In late 1974, standard time was reinstituted for the winter period. In 1987 federal legislation fixed the period of daylight saving time in the United States as the first Sunday (previously the last Sunday) in April to the last Sunday in October; it was expanded in 2005 (effective 2007) to extend from the second Sunday in March to the first Sunday in November. Arizona and Hawaii do not use daylight saving time.

daylight saving time

[¦dā‚līt ‚sāv·iŋ ‚tīm]
(astronomy)
A variation of zone time, usually 1 hour more advanced than standard time, frequently kept during the summer to make better use of daylight. Also known as summer time.
References in periodicals archive ?
The day light saving time was set to begin on March 27.
TERiX continues to offer on its website a "free-of-charge" Day Light Saving Time (DST) public domain solution to the SUN Microsystems[TM] (NASDAQ:SUNW) Solaris[TM] user community running versions 2.
KARACHI, March 17, 2010 (Frontier Star): Sultan Ahmed Chawla, President of Federation of Pakistan Chambers of Commerce & Industry (FPCCI) is deeply concerned on the reports that Government of Pakistan is once again considering to impose Day Light Saving Time (DST) by advancing the clocks by one hour from 15th April 2010.
According to a survey carried out by Gallup Pakistan, majority of all Pakistanis, 58 percent had preferred switching off day light saving time when Ramadan began where as for 22 percent it does not matter and 20 percent were unsure.
Sultan Ahmed Chawla, President of Federation of Pakistan Chambers of Commerce & Industry (FPCCI) is deeply concerned on the reports that Government of Pakistan is once again considering to impose Day Light Saving Time (DST) by advancing the clocks by one hour from 15th April 2010 .
I suggest, therefore, the phrase day light saving is changed to "day light wasting".
This included day light saving measures, recycle and reuse protocols and fostering of ecofriendly practices amongst Mobilink employees.
I often work night shift in ED and have been rostered to work from 23:00 on April 4 until 07:30 on April 5 and have been advised that, due to the end of day light saving, I will be paid one hour less for the shift, is this correct?
TERiX today announces it will offer on its website a "free-of-charge" Day Light Saving Time (DST) public domain solution to the SUN Microsystems[TM] (NASDAQ:SUNW) Solaris[TM] user community running versions 2.