local mean time


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.

QUIZZES

GEE WHILLIKERS! WAIT TILL YOU SEE THIS WORD OF THE DAY QUIZ!

Do you remember all the words from last week, September 21–27, 2020? Then this quiz should be butyraceous.
Question 1 of 7
What does “yare” mean?
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.