solar day
Americannoun
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Astronomy. the time interval between two successive transits by the sun of the meridian directly opposite that of the observer; the 24-hour interval from one midnight to the following midnight.
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Law. the period of time from sunrise to sunset.
noun
Etymology
Origin of solar day
First recorded in 1755–65
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Yet in 2020 there were 28 separate occasions in which a solar day occurred from anywhere between 1.0516 milliseconds and 1.4602 milliseconds less than that period.
From Salon ● Jan. 8, 2021
Most people’s natural cycle is somewhat longer than the 24-hour solar day, which means that, left to our own devices, we would quickly get out of sync with the external world.
From New York Times ● Mar. 10, 2017
Apparent solar time is based on the position of the Sun in the sky, and mean solar time is based on the average value of a solar day during the year.
From Textbooks ● Oct. 13, 2016
More importantly, our internal clock would stay in sync with the solar day.
From Washington Post
The solar day is the fundamental unit of time, not only in daily life but in astronomical practice.
From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 10 "David, St" to "Demidov" by Various
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
