Greenwich, England, United Kingdom

🏴󠁧󠁢󠁥󠁮󠁧󠁿 Greenwich is a town in south-east London, England, situated on the river Thames and located in the historic county of Kent. Greenwich is notable for its maritime history and for giving its name to the Greenwich Meridian (0° longitude) and Greenwich Mean Time. The town became the site of a royal palace, the Palace of Placentia from the 15th century, and was the birthplace of many Tudors, including Henry VIII and Elizabeth I. The palace fell into disrepair during the English Civil War and was demolished to be replaced by the Royal Naval Hospital for Sailors, designed by Sir Christopher Wren and his assistant Nicholas Hawksmoor. These buildings became the Royal Naval College in 1873, and they remained a military education establishment until 1998 when they passed into the hands of the Greenwich Foundation. The historic rooms within these buildings remain open to the public; other buildings are used by University of Greenwich and Trinity Laban Conservatoire of Music and Dance.

The town became a popular resort in the 18th century and many grand houses were built there, such as Vanbrugh Castle (1717) established on Maze Hill, next to the park. From the Georgian period estates of houses were constructed above the town centre. The maritime connections of Greenwich were celebrated in the 20th century, with the siting of the Cutty Sark and Gipsy Moth IV next to the river front, and the National Maritime Museum in the former buildings of the Royal Hospital School in 1934.

Historically an ancient parish in the Blackheath Hundred of Kent, the town formed part of the growing conurbation of London in the 19th century. When the County of London, an administrative area designed to replace the Metropolitan Board of Works, was formed in 1889, the parish merged with those of Charlton-next-Woolwich, Deptford St Nicholas and Kidbrooke to create the Metropolitan Borough of Greenwich. When local government in London was again reformed in 1965, it merged with most of the Metropolitan Borough of Woolwich, creating what is now the Royal Borough of Greenwich, a local authority district of Greater London.

Greenwich Mean Time Greenwich Mean Time (GMT) is a term originally referring to mean solar time at the Royal Observatory, Greenwich in Greenwich. It is commonly used in practice to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, especially by bodies connected with the United Kingdom, such as the BBC World Service, the Royal Navy, the Met Office and others, although strictly UTC is an atomic time scale which only approximates GMT with a tolerance of 0.9 second. It is also used to refer to Universal Time (UT), which is a standard astronomical concept used in many technical fields and is often referred to by the military in the phrase Zulu time.

As the United Kingdom grew into an advanced maritime nation, British mariners kept at least one chronometer on GMT in order to calculate their longitude from the Greenwich meridian, which was by convention considered to have longitude zero degrees (this convention was internationally adopted in the International Meridian Conference of 1884). Note that the synchronization of the chronometer on GMT did not affect shipboard time itself, which was still solar time. But this practice, combined with mariners from other nations drawing from Nevil Maskelyne's method of lunar distances based on observations at Greenwich, eventually led to GMT being used worldwide as a reference time independent of location. Most time zones were based upon this reference as a number of hours and half-hours "ahead of GMT" or "behind GMT".

In recognition of the suburb's astronomical links, Asteroid 2830 has been named 'Greenwich'.

World Heritage Site In 1997 Maritime Greenwich was added to the list of World Heritage Sites, for the concentration and quality of buildings of historic and architectural interest. These can be divided into the group of buildings along the riverfront, Greenwich Park and the Georgian and Victorian town centre.

Education The University of Greenwich main campus occupies most of the grand, landmark riverside vista buildings of the former Royal Naval College. The university has other campuses at Avery Hill in Eltham and at Medway. The Greenwich campus also houses the Trinity College of Music.

National Rail Greenwich is served by Greenwich and Maze Hill stations with Southeastern services to London Cannon Street, Dartford, Barnehurst and Crayford as well as Thameslink services to Luton via London Blackfriars and to Rainham.

London Underground The area is also served by North Greenwich station with Jubilee Line services to Stanmore and Stratford.

DLR Greenwich is served by the Docklands Light Railway, with services from Greenwich and Cutty Sark stations to Bank via Canary Wharf and to Lewisham.

Transport: Bus Greenwich is served by many London Buses routes. • 129 to Lewisham Shopping Centre or North Greenwich • 177 to Peckham via New Cross or to Thamesmead via Woolwich • 180 to Erith via Woolwich or to North Greenwich • 188 to North Greenwich or to Russell Square via Canada Water, Elephant & Castle and Waterloo • 199 to Bellingham via Lewisham & Catford or to Canada Water • 286 to Sidcup via Blackheath and Eltham • 386 to Blackheath or to Woolwich • N1 to Tottenham Court Road station via Elephant & Castle and Waterloo or to Thamesmead via Woolwich (Night Bus) • N199 to St Mary Cray via Lewisham, Catford, Bromley and Orpington and to Trafalgar Square via Canada Water and London Bridge (Night Bus)

Boat There are a number of river boat services running from Greenwich Pier, managed by London River Services. The main services include the Thames commuter catamaran service run by Thames Clippers from Embankment, via Tower Millennium Pier, Canary Wharf and on to the O2 and Woolwich Arsenal Pier; the Westminster-Greenwich cruise service by Thames River Services; and the City Cruises tourist cruise via Westminster, Waterloo and Tower piers.

Pedestrian and cycle routes The Thames Path National Trail runs along the riverside. The Greenwich foot tunnel provides pedestrian access to the southern end of the Isle of Dogs, across the river Thames.

The National Cycle Network Route 1 includes the foot tunnel, though cycling is not permitted in the tunnel itself.