mean solar day
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.
A mean solar day contains exactly 24 hours and is what we use in our everyday timekeeping.
From Textbooks ● Oct. 13, 2016
For many years it was defined as 1/86,400 of a mean solar day.
From Textbooks ● Aug. 12, 2015
A mean solar day — based on the time it takes the Earth to rotate once — is calculated to be 86,400 seconds.
From New York Times ● Jun. 30, 2015
The sidereal day and the mean solar day necessitate some means of registering time, such as clocks; therefore the original day in use must have been the apparent solar day.
From The Astronomy of the Bible An Elementary Commentary on the Astronomical References of Holy Scripture by E. Walter (Edward Walter) Maunder
The Second is the time of one swing of a pendulum making 86,164.09 swings in a sidereal day, or 1/86,400 part of a mean solar day.
From The Story of Electricity by John Munro
