solar day


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Related to solar day: mean solar day, Apparent solar day

solar day

n.
1. The time required for a single rotation of the earth on its axis with respect to the sun, varying slightly throughout the year due to variations in the earth's orbit and other factors.
2. A mean solar day.

solar day

n
(Astronomy) the period of time during which the earth makes one complete revolution on its axis relative to the sun. See day6

day

(deɪ)

n.
1. the interval of light between two successive nights; the time between sunrise and sunset.
2. the light of day; daylight.
3.
a. Also called mean solar day. a division of time equal to 24 hours and representing the average length of the period during which the earth makes one rotation on its axis.
b. Also called solar day. a division of time equal to the time elapsed between two consecutive returns of the same terrestrial meridian to the sun.
c. a division of time equal to 24 hours but reckoned from one midnight to the next.
4. an analogous division of time for a planet other than the earth: the Martian day.
5. the portion of a day allotted to work: an eight-hour day.
6. (often cap.) a day having a particular purpose or observance: New Year's Day.
7. a time considered as propitious or opportune: His day will come.
8. Often, days. a particular era: in olden days.
9. Usu., days. period of life or activity: His days are numbered.
10. period of existence or influence; heyday: In my day we called them “hepcats.”
11. the contest or battle at hand: to win the day.
Idioms:
1. call it a day, to stop working for the rest of the day.
2. day in, day out, every day without fail; regularly. Also, day in and day out.
[before 950; Middle English; Old English dæg]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.solar day - time for Earth to make a complete rotation on its axissolar day - time for Earth to make a complete rotation on its axis; "two days later they left"; "they put on two performances every day"; "there are 30,000 passengers per day"
time unit, unit of time - a unit for measuring time periods
tomorrow - the day after today; "what are our tasks for tomorrow?"
today - the day that includes the present moment (as opposed to yesterday or tomorrow); "Today is beautiful"; "did you see today's newspaper?"
yesterday - the day immediately before today; "it was in yesterday's newspapers"
morrow - the next day; "whenever he arrives she leaves on the morrow"
eve - the day before; "he always arrives on the eve of her departure"
date, day of the month - the specified day of the month; "what is the date today?"
date - a particular day specified as the time something happens; "the date of the election is set by law"
daylight, daytime, day - the time after sunrise and before sunset while it is light outside; "the dawn turned night into day"; "it is easier to make the repairs in the daytime"
high noon, midday, noon, noonday, noontide, twelve noon - the middle of the day
night, nighttime, dark - the time after sunset and before sunrise while it is dark outside
60 minutes, hour, hr - a period of time equal to 1/24th of a day; "the job will take more than an hour"
Translations
References in periodicals archive ?
Tenders are invited for Installation And Commissioning Of Solar Day Light Pipe System For Service Buildings & Covered Sheds On EeBuild Own Operatea?
June 19, 2015 /PRNewswire/ -- In honor of National Solar Day, Golden State Foods (GSF), one of the world's largest suppliers to the quick service restaurant (QSR) industry is pleased to announce their adoption of solar energy to power pallet jacks and lift gates, extending the service life of lift gate electric batteries on their trucking fleet, thereby maximizing efficiency and minimizing the impact on the environment.
Cycles in Nature: The Solar Day, the Lunar Cycle, and the Tidal Force
The reason is that a solar day is not exactly 24 hours.
The 24-hour mean solar day is the period between successive occasions when the sun is directly overhead.
Nearly all life on Earth has an internal circadian body clock that keeps us ticking on a 24-hour cycle, synchronizing a variety of bodily functions such as sleeping and eating with the cycle of light and dark in a solar day.
What's remarkable is how, when we're exposed to natural sunlight, our clocks perfectly become in synch in less than a week to the solar day," CU-Boulder integrative physiology Professor Kenneth Wright, who led the study, said.
Tan-y-Wawr, the official Welsh solar car, set the South African record for the longest distance covered in a solar day as it came third overall in the FIA Olympia class at the Sasol Solar Challenge.
Mesa's Development and Sustainability Department marked completion in conjunction with Solar Day, an international day of awareness celebrating the benefits of solar energy and energy independence.
Apparent solar time is depends on the apparent solar day i.
Historically, the second was simply defined in terms of the rotation of the Earth as 1/86 400 of a mean solar day which means that the Earth's rotation was effectively the timebase.
A narrow floor plate and interior daylight atrium, shaped by the passage of the sun designed to mark times during the solar day, will ensure superior daylight to over 90 percent of the workstations.