WordNet
n. the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere [syn: Greenwich Mean Time, Greenwich Time, GMT, UT, UT1]
Wikipedia
Universal Time (UT) is a time standard based on Earth's rotation. It is a modern continuation of Greenwich Mean Time (GMT), i.e., the mean solar time on the Prime Meridian at Greenwich, London, UK. In fact, the expression "Universal Time" is ambiguous (when accuracy of better than a few seconds is required), as there are several versions of it, the most commonly used being Coordinated Universal Time (UTC) and UT1 (see below). All of these versions of UT, except for UTC, are based on Earth's rotation relative to distant celestial objects ( stars and quasars), but with a scaling factor and other adjustments to make them closer to solar time. UTC is based on International Atomic Time, with leap seconds added to keep it within 0.9 second of UT1.
Usage examples of "universal time".
Then that liner is scheduled to hit those coordinates, and the coded time coordinate corresponds with the predicted Universal Time.
We'd need at least two directions of time flow: sequential personal time, and universal time, with a complete set of tenses for each.
There is not one universal time, except by an elaborate construction.
Gypsy Moth will depart from Laszlo in forty-five minutes Universal Time.
Dawn was the universal time for a major offensive, so that one had all the light of the day to pursue it.
But while it was knowledge and technical understanding Jeremy had gained during those lost, lifeless weeks, life lived at the time-stretched rate of two weeks to every month of elapsed universal time while a ship was in jump, it still wasn't real-life experience.