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Greenwich Mean Time
/ɡɹˈɛnɪtʃ mˈiːn tˈaɪm/

/ɡɹˈɛnɪtʃ mˈiːn tˈaɪm/
Greenwich Mean Time
01
the time as measured at Greenwich, London, on the line of 0° longitude, used to calculate the time across the globe
Example
The flight schedule was based on Greenwich Mean Time.
He adjusted his watch to Greenwich Mean Time for the international call.