Difference Between GMT & UTC
GMT (Greenwich Mean Time) and UTC (Coordinated Universal Time) are often used interchangeably, but there is a subtle difference between the two. GMT is based on the mean solar time at the Prime Meridian (0 degrees longitude) at the Royal Observatory in Greenwich, London, without considering leap seconds. On the other hand, UTC is a more modern time standard that takes into account leap seconds to keep it in sync with the Earth’s rotation.
Because of this, UTC is more stable and precise for scientific and technical purposes, while GMT is still commonly used in everyday conversation and historical contexts. In practical terms, the difference between GMT and UTC is now negligible, with leap seconds occasionally added to UTC to ensure it aligns with astronomical time.
GMT Full Form – Greenwich Mean Time
GMT Full Form: GMT is the time standard against which the world’s other time zones are referenced. GMT is the Mean Solar Time at Greenwich London’s Royal Observatory. So, GMT is based on the mean solar time at the Prime Meridian, which runs through the Royal Observatory in Greenwich, London. This meridian is considered 0 degrees longitude and serves as the starting point for measuring time around the globe.
In this article, we will read about GMT Full Form, along with its meaning, countries, and how to convert GMT to IST.
Also Read: Difference Between GMT And IST
Table of Content
- What is the full form of GMT?
- What is GMT?
- Which Countries Fall under the GMT timezone?
- How to Convert GMT to IST?
- Difference Between GMT & UTC