Time in the United Kingdom - Wikipedia
https://en.wikipedia.org/wiki/Time_in_the_United_Kingdom
OverviewHistoryFutureDecentralisationIANA time zone databaseSee alsoExternal linksUntil the advent of the railways, the United Kingdom used local mean time. Greenwich Mean Time was adopted first by the Great Western Railway in 1840 and a few others followed suit in the following years. In 1847 it was adopted by the Railway Clearing House, and by almost all railway companies by the following year. It was from this initiative that the term "railway time" was derived. Repealed: 1 January 1979 Commencement: 2 August 1880 Royal assent: 2 August 1880
Repealed: 1 January 1979
Commencement: 2 August 1880
Royal assent: 2 August 1880
DA: 27 PA: 34 MOZ Rank: 97