mean solar time
noun Astronomy.
time measured by the hour angle of the mean sun.
Also called
mean time.
Words nearby mean solar time
mean noon,
mean planet,
mean proportional,
mean sea level,
mean solar day,
mean solar time,
mean square,
mean square deviation,
mean sun,
mean time,
mean to
British Dictionary definitions for mean time
mean time
mean solar time
noun
the time, at a particular place, measured in terms of the passage of the mean sun; the timescale is not precisely constant
See mean solar day
Scientific definitions for mean time
mean time
Solar time as measured by the mean sun, resulting in equal 24-hour days throughout the year. If days were measured by the actual movement of the Sun, they would vary slightly in length at different times of the year due to differences in Earth's orbital speed and other factors. Mean time is the basis for standard clock time throughout most of the world. See more at solar time universal time.