Question

What is the significance of Green which mean time (GMT)?​

Answer 1

Answer:

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

as the reference for GMT the prime meridian of Greenwich therefore become the centre of world time and the basis of the global system of time zone it was recommended that the meridian line would indicate 0 degree longitude therefore this also become the start of the universalday