terrestrial time
noun, proper noun
- noun A time standard proposed by Sandford Fleming in the late 19th century to replace Greenwich time and Paris time by one that is universally adopted.
- noun (science fiction) Time based on the time system used on Earth, consisting of 24-hour days.
- proper noun (astronomy, time) A modern astronomical time standard defined by the International Astronomical Union, primarily for time-measurements of astronomical observations made from the surface of the Earth.
Synonyms
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “terrestrial time”, CC BY-SA 4.0. Details