What Does GMT Stand For?

Subtitle 1: Time Zones and GMT
Everywhere in the world people use a standard of time and measure it in 24-hour increments. This means that one day is divided into 24 equal segments so that you can tell the time accurately. To help identify the time of day in different parts of the world, different zones were created so that the times could be universally understood. The time zones are divided by 15-degree longitudes with Greenwich, England being the center. This is why the time zone in this location is called Greenwich Mean Time (GMT).

Subtitle 2: Important Facts About GMT
GMT was adopted as the standard time measurement at the International Meridian Conference in 1884. This meant that the world could have a single reference point for all clocks and watches no matter where in the world they were. GMT is part of the Coordinated Universal Time (UTC) system and is the same as Universal Time. It is not changed according to daylight savings, as all other time zones are, but remains constant throughout the year.

Subtitle 3: How GMT Works
GMT is a base accounting of time and is usually used by scientists and astronomers as it is convenient to use due to its accuracy. It is not synced with the Sun, but rather is an abstract calculation of time since it is a continuous time measurement that never stops. GMT is based on the Prime Meridian, which is located in London, and is set at 0° longitude. The timeline of the world is then divided by GMT, split into 24 time zones, each an hour apart.