Question

what is meant by green mean time

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Answer 1

Answer:

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Explanation:

Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London, reckoned from midnight. ... English speakers often use GMT as a synonym for Coordinated Universal Time (UTC).

Answer 2

Answer:

Greenwich Mean Time (GMT) is the time measured on the Earth's zero degree line of longitude, or meridian. This runs from the North Pole to the South Pole, passing through the Old Royal Observatory in the London suburb of Greenwich