Solar time as measured by the position of the mean sun with respect to an observer's local meridian. Like apparent time, local mean time differs continuously with the observer's longitude and is not standardized over a time zone. However, a day as measured by local mean time does not vary in length throughout the year-it is always 24 hours. Compare apparent time. See more at mean time solar time.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
How to use local mean time in a sentence
In the table, so far as is known, the local mean time of the observatory has been employed.
What is the local mean time of the Star Etamin's meridian passage?
The result will be the local mean time of the star's meridian passage.
You will then have secured the name of the star desired and the exact local mean time of the star's meridian passage.
At what local mean time will the Star Antares be on the meridian?