GMT FULL FORM - SSC NOTES PDF

GMT FULL FORM

GMT FULL FORM

Full Form of GMT : Greenwich Mean Time

What is the full form of GMT?

No:1. The full form of GMT is Greenwich Mean Time.
No:2. GMT is the Mean Solar Time at Greenwich London’s Royal Observatory.
No:3. It is measured at the Earth’s meridian that is a longitude line of zero degrees.
No:4. These lines run from the north to south Pole, i.e. going through London’s Old Royal Observatory, Greenwich.

No.-1. Download 15000 One Liner Question Answers PDF

No.-2. Free Download 25000 MCQ Question Answers PDF

No.-3. Complete Static GK with Video MCQ Quiz PDF Download

No.-4. Download 1800+ Exam Wise Mock Test PDF

No.-5. Exam Wise Complete PDF Notes According Syllabus

No.-6. Last One Year Current Affairs PDF Download

No.-7. Join Our Whatsapp Group

No.-8. Join Our Telegram Group

A Brief History of GMT

No:1. The British Parliament did not formally adopt GMT until 2 August 1880.
No:2. The USA ratified it on 18th November 1883.
No:3. In the 1884 International Meridian Conference, GMT was incorporated internationally, and 24 time zones were created.
No:4. GMT is used today as the civil time or UTC of the United Kingdom.

Few points remember about GMT.

No:1. GMT considered a worldwide standard of time.
No:2. It is Established in 1884, used as a standard for all time zones and as a reference for global timeline.
No:3. Since it is evaluated from the Greenwich Meridian Line, Greenwich Mean Time is sometimes referred to as Greenwich Meridian Time too.
No:4. It is focused on earth’s rotation which would be irregular, but it observes a fictitious mean and takes into account a uniform velocity around the equator.
No:5. GMT is world time and the cornerstone of world time. It is an actual reference in time and, thus, does not switch with the weather.

Ambiguity in the definition of GMT

No:1. Historically, GMT has been used with two different conventions for numbering hours.
No:2. The long-standing astronomical convention, dating from the work of Ptolemy, was to refer to noon as zero hours (see Julian day).
No:3. This contrasted with the civil convention of referring to midnight as zero hours dating from the Roman Empire.
No:4. The latter convention was adopted on and after 1 January 1925 for astronomical purposes, resulting in a discontinuity of 12 hours, or half a day.
No:5. The instant that was designated as “December 31.5 GMT” in 1924 almanacs became “January 1.0 GMT” in 1925 almanacs.
No:6. The term Greenwich Mean Astronomical Time (GMAT) was introduced to unambiguously refer to the previous noon-based astronomical convention for GMT.
No:7. The more specific terms UT and UTC do not share this ambiguity, always referring to midnight as zero hours.
MUST READ : FIR FULL FORM

No.-1. Download 15000 One Liner Question Answers PDF

No.-2. Free Download 25000 MCQ Question Answers PDF

No.-3. Complete Static GK with Video MCQ Quiz PDF Download

No.-4. Download 1800+ Exam Wise Mock Test PDF

No.-5. Exam Wise Complete PDF Notes According Syllabus

No.-6. Last One Year Current Affairs PDF Download

No.-7. Join Our Whatsapp Group

No.-8. Join Our Telegram Group

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top