GMT Full Form

What is the full form of GMT?

The GMT full form is Greenwich Mean Time. This refers to the solar time displayed at the Royal Observatory in Greenwich, London, England. Noon in Greenwich is when the sun is above the prime meridian. This imaginary line divides the Earth into two parts, the eastern and western hemispheres. GMT is defined along the Greenwich Meridian, called Greenwich Meridian Time. Daylight saving time does not affect GMT.

This Story also Contains

1. What is the full form of GMT?
2. History of GMT:
3. The function of GMT:
4. Use of Greenwich Mean Time:

History of GMT:

Until 2 August, 1880, GMT was not officially adopted by the British Parliament. On November 18, 1883, the GMT standard was adopted in the United States. GMT was adopted internationally at the International Meridian Conference in 1884, resulting in four time zones. Currently, GMT is used as the UK's commercial time.

Coordinated Universal Time (UTC) was adopted as universal time in 1972, replacing Greenwich Mean Time (GMT). UTC is based on atomic measurements, and GMT is based on the Earth's rotation.

The function of GMT:

• Greenwich Mean Time is Universal Time.

• The Greenwich Meridian is the reference point for time zones around the world.

• Local time in countries east of the Greenwich meridian is ahead of GMT, and local time in countries west of the Greenwich meridian is behind GMT.

• GMT focuses on Earth's rotation, which may be irregular but has a hypothetical meaning. Therefore, near the equator, the speed is assumed to be the same.

Use of Greenwich Mean Time:

Greenwich Mean Time (GMT) is the standard time used worldwide. GMT is based on the Greenwich Meridian, located at 0 degrees longitude. Therefore, GMT can be used anywhere worldwide, making it an ideal time standard for international use. Greenwich Mean Time is sometimes called "Universal Time" or "UTC" for Coordinated Universal Time. Greenwich Mean Time is the standard used in the United Kingdom and other British territories. Using GMT can be a bit confusing initially, but with a little practice, it becomes easy to use. The easiest way to think of Greenwich Mean Time is as the time zone used in London, England.