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Greenwich Mean Time
/ɡɹˈɛnɪtʃ mˈiːn tˈaɪm/
/ɡɹˈɛnɪtʃ mˈiːn tˈaɪm/
GMTGreenwich Mean Time
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the time as measured at Greenwich, London, on the line of 0° longitude, used to calculate the time across the globe
Greenwich Mean Time
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Example
The flight schedule was based on Greenwich Mean Time.
He adjusted his watch to Greenwich Mean Time for the international call.
Scientists use Greenwich Mean Time to standardize observations across different locations.
To convert local time to Greenwich Mean Time, subtract or add the appropriate hours.
All time zones are calculated relative to Greenwich Mean Time.
