Definition, Meaning & Synonyms

solar day

Noun
/ˈsoʊlər deɪ/
Definition
A solar day is the time it takes for the Earth to rotate once on its axis, making the sun appear in the same position in the sky as it was the previous day.
Examples
  • The solar day is the basis for our 24-hour clock system.
  • Understanding the length of a solar day helps astronomers calculate planetary movements.
Meaning
It refers specifically to the period from one noon to the next, which is roughly 24 hours.
Synonyms
  • Day
  • Solar cycle
  • Earth day