GMT vs UTC: Comparison Chart
Feature |
GMT |
UTC |
---|---|---|
Full Name |
Greenwich Mean Time |
Coordinated Universal Time |
Definition |
A time zone based on the mean solar time at the Royal Observatory in Greenwich, London |
A time standard based on atomic clocks and kept precise using leap seconds |
Display Format |
12-hour or 24-hour format |
24-hour format |
Daylight Savings Time |
Some countries that use GMT switch to different time zones during DST |
UTC does not change for DST |
Prime Meridian |
The zero degrees longitude that passes through Greenwich |
An imaginary line that is aligned with the prime meridian but not fixed to a specific location |
Difference Between GMT and UTCDifference Between GMT and UTC – FAQs
Difference Between GMT and UTC: Greenwich Mean Time and Coordinated Universal Time are often used interchangeably or are confused as one, but GMT is a time zone and UTC is a time standard. Even though UTC and GMT share the same time, there is a basic difference between them.
GMT is a time zone that is officially used in European and African countries. The time zone can be displayed in both 12-hour and 24-hour format, whereas UTC is a time standard that is used as the international timekeeping standard and is not a time zone.
In this article, we will learn about the definitions of GMT and UTC, their examples, and the difference between GMT and UTC.
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