Question

What is the significance of greenwhich mean time​

Answer 1

As the reference for GMT, the Prime Meridian at Greenwich therefore became the centre of world time and the basis for the global system of time zones. ... It was recommended that the meridian line would indicate 0° longitude. Therefore this also became the start of the Universal Day.

Answer 2

THE ANSWER IS:-

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).

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