daylight

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daylight

[′dā‚līt]
(astronomy)
Light of the day, from sun and sky.
(engineering)

daylight

The period of time during any day that begins with the morning civil twilight and ends with the evening civil twilight. Civil twilight is the period before sunrise and after sunset when the sun's center is between 0° and 6° below the horizon.
References in periodicals archive ?
Daylight savings time was (https://www.livescience.com/56048-daylight-saving-time-guide.html) first developed in 1784 by Benjamin Franklin as a way to make use of daylight waking hours and conserve energy.
Kevin Brennan, head of sustainability at VELUX Company Ltd, concluded: "While in the UK we must adhere to various building standards and codes in relation to improved energy efficiency and quality, the importance of daylight has been largely ignored.
"By incorporating the use of natural daylight into building design it can not only contribute towards a building's energy efficiency but it has significant health benefits too - benefits that should not be ignored by the Government, the industry or the consumer.
At VELUX we are working to help provide the necessary knowledge and tools to promote thorough research and analysis." Throughout its history, VELUX has keenly focused on the optimal use of daylight in all kinds of buildings.
Through the design and production of windows and accessories that control the inflow of sunlight, as well as initiatives relating to legislation and research in the areas of daylight and indoor environment, the company has maintained a strong interest in the use of daylight.
This alteration would not be the first time that Daylight Saving Time has been changed.
"Extending Daylight Saving Time makes sense, especially with skyrocketing energy costs;' said Upton.
On April 28, 2005, the "Indiana Legislature voted to approve Daylight Saving Time for Indiana and to petition the US Department of Transportation to hold hearings to determine the location of the dividing line between the Eastern and Central time zones, relative to Indiana." Indiana plans to be in accordance with DST in 2006.