terrestrial time

Meanings

1. 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.
2. Time based on the time system used on Earth, consisting of 24-hour days.

1. Alternative letter-case form of Terrestrial Time.

1. 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.