What is the Full Form of GMT?

The full form of GMT is Greenwich Mean Time. The GMT is known as the Mean Solar Time at the Royal Observatory of Greenwich London. The GMT is measured as per the meridian of Earth, which is a zero-degree longitude line. These specific lines run from the North Pole to the South Pole as well as passing through London’s Old Royal Observatory. Apart from the full form of gmt, we will also share some crucial pieces of information. Make sure you read to the end to know more. 

Important Points You Should Remember about GMT

There are some important points that you need to remember about GMT. For instance, GMT is considered a global time standard of Earth. GMT was first introduced in 1984 and is capable of measuring standard time zones. Apart from that, it can also be used to measure global chronological reference. 

Since GMT is calculated from the Greenwich Meridian Line, it’s also known as Greenwich Meridian Time. 

Introduction of Greenwich Mean Time 

Most people don’t know when Greenwich Mean Time actually started. Greenwich Mean Time or GMT is one of the most effective time zones that cover the overall meridian line of Earth. This specific line goes through the Greenwich Observatory in London. Greenwich Observatory created Greenwich Mean Time back in 1884. At that point in time, people used to use GMT  to guide ships at sea. Nowadays, many countries use the GMT as their standard local time. 

UTC and Greenwich Mean Time 

Keep in mind that the GMT is similar to that of UTC. UTC is another popular standard time that is being used by numerous countries in the world. Unlike UTC, Greenwich Median Time is dependent on the rotation of the Earth. On the other hand, UTC is dependent on atomic clocks. GMT is measured as per the Greenwich Mean Time hours and UTC is measured as per Coordinated Universal Time hours. 

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