terrestrial time
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terrestrial time¹
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. Whenever exact time was required for any purpose, terrestrial time, assuming it to be in general use, would be available.
- Time based on the time system used on Earth, consisting of 24-hour days.
proper noun
- Alternative letter-case form of Terrestrial Time
Terrestrial Time²
proper noun terrestrial 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.
Similar: Terrestrial Dynamical Time
Talk about this word "terrestrial time." Wiktionary, via Micwyn, micwyn.com/word/terrestrial%20time. Accessed 6 Nov. 2026. terrestrial time. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/terrestrial%20time "terrestrial time." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/terrestrial%20time.Cite this
@misc{terrestrial_time_2026,
title = {terrestrial time},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/terrestrial%20time},
urldate = {2026-11-06}
}
