Greenwich Mean Time vs Greenwich Time

Greenwich Mean Time and Greenwich Time both are nouns.

Word	Noun	Adjective	Verb	Adverb
Greenwich Mean Time	Yes	No	No	No
Greenwich Time	Yes	No	No	No

As nouns, Greenwich Mean Time and Greenwich Time are synonyms defined as:

Greenwich Mean Time and Greenwich Time: the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere

Other synonyms of Greenwich Mean Time include GMT, universal time, UT1, UT.

Greenwich Mean Time (noun)	Greenwich Time (noun)
the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere	the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere