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Daylight is the combination of all direct and indirect sunlight during the daytime. This includes direct sunlight , diffuse sky radiation , and (often) both of these reflected by Earth and terrestrial objects, like landforms and buildings.
The useful daylight illuminance calculation is based on three factors—the percentage of time a point is below, between, or above an illuminance value. The range for these factors is typically 100–2,000 lux. Useful daylight illuminance is similar to daylight autonomy but has the added benefit of addressing glare and thermal discomfort. [44]
Daytime or day as observed on Earth is the period of the day during which a given location experiences natural illumination from direct sunlight. Daytime occurs when the Sun appears above the local horizon , that is, anywhere on the globe's hemisphere facing the Sun.
The sky's brightness varies greatly over the day, and the primary cause differs as well. During daytime, when the Sun is above the horizon, the direct scattering of sunlight is the overwhelmingly dominant source of light.
Daylight is an EP by American hip hop artist Aesop Rock. It was released via Definitive Jux on February 5, 2002. It is also the title of a single from his 2001 album, Labor Days. The song is included on the EP, along with a reworking entitled "Night Light".
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Daylight saving time (DST), also referred to as daylight saving(s), daylight savings time, daylight time (United States and Canada), or summer time (United Kingdom, European Union, and others), is the practice of advancing clocks to make better use of the longer daylight available during summer so that darkness falls at a later clock time.
A nightlight is a small light fixture, usually electrical, placed for comfort or convenience in dark areas or areas that may become dark at certain times, such as at night or during an emergency. Small long-burning candles serving a similar function are referred to as " tealights ".