Greenwich Mean Time

world

time / hour / the hours or time when something happens

standard, basis, criterion, norm, guideline, yardstick

London (the capital city of the United Kingdom; capital city of England) / London (a city in southwestern Ontario, Canada)

Greenwich (a town in London, England) / Greenwich (a borough of Greater London) / Greenwich (a town in Connecticut)

decision / choice

to decide / to decide on; to choose

A Londoner; a person from, or an inhabitant of, London

standard time