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History. Until 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.
Greenwich Mean Time (GMT) is the local mean time at the Royal Observatory in Greenwich, London, counted from midnight. At different times in the past, it has been calculated in different ways, including being calculated from noon ; [1] as a consequence, it cannot be used to specify a particular time unless a context is given.
This is a timeline of British history, comprising important legal and territorial changes and political events in the United Kingdom and its predecessor states.
A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partially obscuring Earth's view of the Sun. Below is a complete list of total and annular eclipses visible anywhere within the modern extent of the United Kingdom between AD 1 and AD 2090 [1] and a description of forthcoming partial solar eclipses visible ...
This is a timeline of English history, comprising important legal and territorial changes and political events in England and its predecessor states. To read about the background to these events, see History of England .
The history of the United Kingdom begins in 1707 with the Treaty of Union and Acts of Union. The core of the United Kingdom as a unified state came into being with the political union of the kingdoms of England and Scotland , [1] into a new unitary state called Great Britain .
Railway time was the standardised time arrangement first applied by the Great Western Railway in England in November 1840, the first recorded occasion when different local mean times were synchronised and a single standard time applied.
Early history. British Summer Time was first established by the Summer Time Act 1916, after a campaign by builder William Willett. His original proposal was to move the clocks forward by 80 minutes, in 20-minute weekly steps on Sundays in April and by the reverse procedure in September. [7]
Raids by Vikings became frequent after about AD 800, and the Norsemen settled in large parts of what is now England. During this period, several rulers attempted to unite the various Anglo-Saxon kingdoms, an effort that led to the emergence of the Kingdom of England by the 10th century.
The idea of using atomic transitions to measure time was first suggested by the British scientist Lord Kelvin in 1879, although it was only in the 1930s with the development of magnetic resonance that there was a practical method for measuring time in this way.