Question

What is the full form of GMT?
A. Greenwich Mean Time
B. Greenwich Mid Time
C. Gold Mean Time
D. Greenwich Mega Time

Answer 1

Hint: Weather observations around the world are observed using the standard time.The weather communities use a twenty four hour clock. The time zone runs through London and is used universally.

Complete Step by Step answer: The full form of GMT is Greenwich Mean Time. It is the mean solar time at the Royal observatory in Greenwich in London. Until 2nd August 1880, the British government did not put GMT into effect. It was approved by the USA on 18th November 1883.
The Greenwich Mean Time is universally acknowledged. It is used as a standard time for all time zones. As Britain became an important centre for maritime activities. It began to grow as a maritime nation. Mariners used a chronometer which aligned with the Greenwich meridian which is at zero degree. This was adopted in the International Meridian Conference in 1884.
GMT is used by several bodies associated with the United Kingdom like the BBC, Royal Navy and others. It depended on the rotation of the earth. But since the rotation is irregular, it takes a fictitious mean and takes into account a uniform velocity around the equator. GMT doesn't need to change with weather. It is a fixed time.

Note: While writing the answer do not get confused between GMT and UTC. GMT is a time zone and UTC is time standard. GMT is used worldwide and is displayed in 12 hour as well the 24 hour format. UTC is used as a time standard for universal time zones and a basis for civil time today. This is a 24 hour clock kept using atomic clocks merged with earth’s rotation.