United Kingdom of Great Britain and Northern Ireland; note - Great Britain includes England, Scotland, and Wales

Constitutional monarchy and Commonwealth realm

UTC 0 (5 hours ahead of Washington, DC during Standard Time)

+1hr, begins last Sunday in March; ends last Sunday in October

Applies to the United Kingdom proper, not to its overseas dependencies or territories

27 two-tier counties, 32 London boroughs and 1 City of London or Greater London, 36 metropolitan districts, 56 unitary authorities (including 4 single-tier counties*)

Buckinghamshire, Cambridgeshire, Cumbria, Derbyshire, Devon, Dorset, East Sussex, Essex, Gloucestershire, Hampshire, Hertfordshire, Kent, Lancashire, Leicestershire, Lincolnshire, Norfolk, North Yorkshire, Northamptonshire, Nottinghamshire, Oxfordshire, Somerset, Staffordshire, Suffolk, Surrey, Warwickshire, West Sussex, Worcestershire

Barking and Dagenham, Barnet, Bexley, Brent, Bromley, Camden, Croydon, Ealing, Enfield, Greenwich, Hackney, Hammersmith and Fulham, Haringey, Harrow, Havering, Hillingdon, Hounslow, Islington, Kensington and Chelsea, Kingston upon Thames, Lambeth, Lewisham, City of London, Merton, Newham, Redbridge, Richmond upon Thames, Southwark, Sutton, Tower Hamlets, Waltham Forest, Wandsworth, Westminster

Barnsley, Birmingham, Bolton, Bradford, Bury, Calderdale, Coventry, Doncaster, Dudley, Gateshead, Kirklees, Knowlsey, Leeds, Liverpool, Manchester, Newcastle upon Tyne, North Tyneside, Oldham, Rochdale, Rotherham, Salford, Sandwell, Sefton, Sheffield, Solihull, South Tyneside, St. Helens, Stockport, Sunderland, Tameside, Trafford, Wakefield, Walsall, Wigan, Wirral, Wolverhampton

Bath and North East Somerset, Blackburn with Darwen, Bedford, Blackpool, Bournemouth, Bracknell Forest, Brighton and Hove, City of Bristol, Central Bedfordshire, Cheshire East, Cheshire West and Chester, Cornwall, Darlington, Derby, Durham County*, East Riding of Yorkshire, Halton, Hartlepool, Herefordshire*, Isle of Wight*, Isles of Scilly*, City of Kingston upon Hull, Leicester, Luton, Medway, Middlesbrough, Milton Keynes, North East Lincolnshire, North Lincolnshire, North Somerset, Northumberland*, Nottingham, Peterborough, Plymouth, Poole, Portsmouth, Reading, Redcar and Cleveland, Rutland, Shropshire, Slough, South Gloucestershire, Southampton, Southend-on-Sea, Stockton-on-Tees, Stoke-on-Trent, Swindon, Telford and Wrekin, Thurrock, Torbay, Warrington, West Berkshire, Wiltshire, Windsor and Maidenhead, Wokingham, York

Antrim, Ards, Armagh, Ballymena, Ballymoney, Banbridge, Belfast, Carrickfergus, Castlereagh, Coleraine, Cookstown, Craigavon, Derry, Down, Dungannon, Fermanagh, Larne, Limavady, Lisburn, Magherafelt, Moyle, Newry and Mourne, Newtownabbey, North Down, Omagh, Strabane

Aberdeen City, Aberdeenshire, Angus, Argyll and Bute, Clackmannanshire, Dumfries and Galloway, Dundee City, East Ayrshire, East Dunbartonshire, East Lothian, East Renfrewshire, City of Edinburgh, Eilean Siar (Western Isles), Falkirk, Fife, Glasgow City, Highland, Inverclyde, Midlothian, Moray, North Ayrshire, North Lanarkshire, Orkney Islands, Perth and Kinross, Renfrewshire, Shetland Islands, South Ayrshire, South Lanarkshire, Stirling, The Scottish Borders, West Dunbartonshire, West Lothian

Blaenau Gwent; Bridgend; Caerphilly; Cardiff; Carmarthenshire; Ceredigion; Conwy; Denbighshire; Flintshire; Gwynedd; Isle of Anglesey; Merthyr Tydfil; Monmouthshire; Neath Port Talbot; Newport; Pembrokeshire; Powys; Rhondda Cynon Taff; Swansea; The Vale of Glamorgan; Torfaen; Wrexham

Anguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands, Cayman Islands, Falkland Islands, Gibraltar, Montserrat, Pitcairn Islands, Saint Helena, Ascension, and Tristan da Cunha, South Georgia and the South Sandwich Islands, Turks and Caicos Islands

12 April 1927 (Royal and Parliamentary Titles Act establishes current name of the United Kingdom of Great Britain and Northern Ireland); notable earlier dates: 927 (minor English kingdoms united); 3 March 1284 (enactment of the Statute of Rhuddlan uniting England and Wales); 1536 (Act of Union formally incorporates England and Wales); 1 May 1707 (Acts of Union formally unite England and Scotland as Great Britain); 1 January 1801 (Acts of Union formally unite Great Britain and Ireland as the United Kingdom of Great Britain and Ireland); 6 December 1921 (Anglo-Irish Treaty formalizes partition of Ireland; six counties remain part of the United Kingdom and Northern Ireland)

The UK does not celebrate one particular national holiday

Unwritten; partly statutes, partly common law and practice

Common law system; has nonbinding judicial review of Acts of Parliament under the Human Rights Act of 1998

Accepts compulsory ICJ jurisdiction with reservations; accepts ICCt jurisdiction

Queen ELIZABETH II (since 6 February 1952); Heir Apparent Prince CHARLES (son of the queen, born 14 November 1948)

Prime Minister David CAMERON (since 11 May 2010)

Cabinet of Ministers appointed by the prime minister

The monarchy is hereditary; following legislative elections, the leader of the majority party or the leader of the majority coalition usually becomes the prime minister

Bicameral Parliament consists of House of Lords; note - membership is not fixed (788 seats; consisting of approximately 670 life peers, 92 hereditary peers, and 26 clergy - as of 1 April 2012) and House of Commons (650 seats since 2010 elections; members elected by popular vote to serve five-year terms unless the House is dissolved earlier)

House of Lords - no elections (note - in 1999, as provided by the House of Lords Act, elections were held in the House of Lords to determine the 92 hereditary peers who would remain there; elections are held only as vacancies in the hereditary peerage arise); House of Commons - last held on 6 May 2010 (next to be held by June 2015)

House of Commons - percent of vote by party - Conservative 36.1%, Labor 29%, Liberal Democrats 23%, other 11.9%; seats by party - Conservative 305, Labor 258, Liberal Democrat 57, other 30

In 1998 elections were held for a Northern Ireland Assembly (because of unresolved disputes among existing parties, the transfer of power from London to Northern Ireland came only at the end of 1999 and has been suspended four times, the latest occurring in October 2002 and lasting until 8 May 2007); in 1999, the UK held the first elections for a Scottish Parliament and a Welsh Assembly; the most recent elections for the Northern Ireland Assembly, the Scottish Parliament, and the Welsh Assembly took place in May 2011

Supreme Court of the UK (established in October 2009 taking over appellate jurisdiction formerly vested in the House of Lords is the final court of appeal); Senior Courts of England and Wales (comprising the Court of Appeal, the High Court of Justice, and the Crown Courts); Court of Judicature (Northern Ireland); Scotland's Court of Session and High Court of the Justiciary

Conservative [David CAMERON]; Democratic Unionist Party or DUP (Northern Ireland) [Peter ROBINSON]; Labor Party [Ed MILIBAND]; Liberal Democrats (Lib Dems) [Nick CLEGG]; Party of Wales (Plaid Cymru) [Leanne WOOD]; Scottish National Party or SNP [Alex SALMOND]; Sinn Fein (Northern Ireland) [Gerry ADAMS]; Social Democratic and Labor Party or SDLP (Northern Ireland) [Alasdair MCDONNELL]; Ulster Unionist Party (Northern Ireland) [Tom ELLIOTT]

Campaign for Nuclear Disarmament; Confederation of British Industry; National Farmers' Union; Trades Union Congress

ADB (nonregional member), AfDB (nonregional member), Arctic Council (observer), Australia Group, BIS, C, CBSS (observer), CDB, CE, CERN, EAPC, EBRD, EIB, ESA, EU, FAO, FATF, G-20, G-5, G-7, G-8, G-10, IADB, IAEA, IBRD, ICAO, ICC, ICRM, IDA, IEA, IFAD, IFC, IFRCS, IGAD (partners), IHO, ILO, IMF, IMO, IMSO, Interpol, IOC, IOM, IPU, ISO, ITSO, ITU, ITUC, MIGA, MONUSCO, NATO, NEA, NSG, OAS (observer), OECD, OPCW, OSCE, Paris Club, PCA, PIF (partner), SELEC (observer), UN, UNCTAD, UNESCO, UNFICYP, UNHCR, UNIDO, UNISFA, UNMISS, UNRWA, UNSC (permanent), UPU, WCO, WHO, WIPO, WMO, WTO, ZC

Ambassador Peter John WESTMACOTT

3100 Massachusetts Avenue NW, Washington, DC 20008

Atlanta, Boston, Chicago, Houston, Los Angeles, Miami, New York, San Francisco

24 Grosvenor Square, London, W1A 1AE note - a new embassy is scheduled to open by the end of 2017 in the Nine Elms area of Wandsworth

PSC 801, Box 40, FPO AE 09498-4040

Blue field with the red cross of Saint George (patron saint of England) edged in white superimposed on the diagonal red cross of Saint Patrick (patron saint of Ireland), which is superimposed on the diagonal white cross of Saint Andrew (patron saint of Scotland); properly known as the Union Flag, but commonly called the Union Jack; the design and colors (especially the Blue Ensign) have been the basis for a number of other flags including other Commonwealth countries and their constituent states or provinces, and British overseas territories

Lion (Britain in general); lion (England); lion, unicorn (Scotland); dragon (Wales); harp (Northern Ireland)

In use since 1745; by tradition, the song serves as both the national and royal anthem of the United Kingdom; it is known as either "God Save the Queen" or "God Save the King," depending on the gender of the reigning monarch; it also serves as the royal anthem of many Commonwealth nations