UTC+08:00 is an identifier for a time offset from UTC of +08:00.
110-559: With an estimated population of 1.708 billion living within the time zone, roughly 21% of the world population, it is the most populous time zone in the world, as well as a possible candidate for ASEAN Common Time . This time zone is used in all predominantly Chinese-speaking regions , giving international Chinese websites and TV channels the same time. In Indonesia, it is known as Central Indonesian Time ( Indonesian : Waktu Indonesia Tengah / WITA ) while in Western Australia, it
220-411: A statue of Colston was pulled down from its plinth by protestors and pushed into Bristol Harbour. The statue was recovered on 11 June and has become a museum exhibit. Bristol City council consists of 70 councillors representing 34 wards, with between one and three per ward serving four-year terms. As of May 2024, no party has an overall controlling majority, but Green Party are the largest group on
330-557: A C library based on the BSD C library, or the System V Release 4 C library, can make use of this database. Windows -based computer systems prior to Windows 95 and Windows NT used local time, but Windows 95 and later, and Windows NT, base system time on UTC. They allow a program to fetch the system time as UTC, represented as a year, month, day, hour, minute, second, and millisecond; Windows 95 and later, and Windows NT 3.5 and later, also allow
440-582: A car, van, motorbike or taxi, 2.2% commute by rail and 9.8% by bus, while 19.6% walk. The Runnymede Trust found in 2017 that Bristol "ranked 7th out of the 348 districts of England & Wales (1=worst) on the Index of Multiple Inequality." In terms of employment, the report found that "ethnic minorities are disadvantaged compared to white British people nationally, but this is to a greater extent in Bristol, particularly for black groups." Black people in Bristol experience
550-551: A commercial organisation, 'The Company Adventurers to the New Found Land', to assist their endeavours. However, they seem to have lost interest in North America after 1509, having incurred great expenses and made little profit. During the 16th century, Bristol merchants concentrated on developing trade with Spain and its American colonies. This included the smuggling of prohibited goods, such as food and guns, to Iberia during
660-417: A compulsory load line on ships. By 1867, ships were getting larger and the meanders in the river Avon prevented boats over 300 ft (90 m) from reaching the harbour, resulting in falling trade. The port facilities were migrating downstream to Avonmouth and new industrial complexes were founded there. Some of the traditional industries including copper and brass manufacture went into decline, but
770-444: A convenient time, usually at night, not exactly when they cross a certain longitude. Some ships simply remain on the time of the departing port during the whole trip. Ideal time zones, such as nautical time zones, are based on the mean solar time of a particular meridian in the middle of that zone with boundaries located 7.5 degrees east and west of the meridian. In practice, however, many time zone boundaries are drawn much farther to
880-664: A developed area between the Bristol city boundary and the M4, M5 and M32 motorways (now in South Gloucestershire) was so named as part of a 1987 plan prepared by the Northavon District Council of Avon county. The West of England Combined Authority was created on 9 February 2017. Covering Bristol and the rest of the old Avon county with the exception of North Somerset, the new combined authority has responsibility for regional planning, roads, and local transport, and to
990-501: A lesser extent, education and business investment. The authority is led by the Mayor of the West of England , Dan Norris . Bristol's boundaries can be defined in several ways, including those of the city itself, the developed area, or Greater Bristol . The city council boundary is the narrowest definition of the city itself. However, it unusually includes a large, roughly rectangular section of
1100-551: A prominent role in funding Richard Strongbow de Clare and the Norman invasion of Ireland . The port developed in the 11th century around the confluence of the Rivers Frome and Avon , adjacent to Bristol Bridge just outside the town walls. By the 12th century, there was an important Jewish community in Bristol which survived through to the late 13th century when all Jews were expelled from England. The stone bridge built in 1247
1210-423: A single time zone even though the extent of their territory far exceeds the ideal 15° of longitude for one hour; other countries, such as Spain and Argentina , use standard hour-based offsets, but not necessarily those that would be determined by their geographical location. The consequences, in some areas, can affect the lives of local citizens, and in extreme cases contribute to larger political issues, such as in
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#17328456398741320-401: A system of hourly standard time zones for North American railroads, although he published nothing on the matter at that time and did not consult railroad officials until 1869. In 1870 he proposed four ideal time zones having north–south borders, the first centered on Washington, D.C. , but by 1872 the first was centered on meridian 75° west of Greenwich , with natural borders such as sections of
1430-445: A worldwide system of time zones in 1876 - see Sandford Fleming § Inventor of worldwide standard time . The proposal divided the world into twenty-four time zones labeled A-Y (skipping J), each one covering 15 degrees of longitude. All clocks within each zone would be set to the same time as the others, but differed by one hour from those in the neighboring zones. He advocated his system at several international conferences, including
1540-471: Is 106 mi (171 km) west of London, 77 mi (124 km) south-southwest of Birmingham and 26 mi (42 km) east of the Welsh capital Cardiff . Areas adjoining the city fall within a loosely defined area known as Greater Bristol . Bath is located 11 mi (18 km) south east of the city centre, Weston-super-Mare is 18 mi (29 km) to the south west and the Welsh city of Newport
1650-495: Is 19 mi (31 km) to the north west. The climate is oceanic ( Köppen : Cfb) , milder than most places in England and United Kingdom. Located in southern England, Bristol is one of the warmest cities in the UK with a mean annual temperature of approximately 10.5 °C (50.9 °F). It is among the sunniest, with 1,541–1,885 hours of sunshine per year. Although the city
1760-478: Is added directly after the time without a separating space. "Z" is the zone designator for the zero UTC offset. "09:30 UTC" is therefore represented as "09:30Z" or "0930Z". Likewise, "14:45:15 UTC" is written as "14:45:15Z" or "144515Z". UTC time is also known as "Zulu" time, since "Zulu" is a phonetic alphabet code word for the letter "Z". Offsets from UTC are written in the format ±hh:mm, ±hhmm, or ±hh (either hours ahead or behind UTC). For example, if
1870-487: Is also a widely used variant of ACST ( Australian Central Standard Time , UTC+09:30). Conversion between time zones obeys the relationship in which each side of the equation is equivalent to UTC. The conversion equation can be rearranged to For example, the New York Stock Exchange opens at 09:30 ( EST , UTC offset= −05:00). In California ( PST , UTC offset= −08:00) and India ( IST , UTC offset= +05:30),
1980-490: Is defined by a standard offset from Coordinated Universal Time (UTC). The offsets range from UTC−12:00 to UTC+14:00 , and are usually a whole number of hours, but a few zones are offset by an additional 30 or 45 minutes, such as in India and Nepal . Some areas in a time zone may use a different offset for part of the year, typically one hour ahead during spring and summer , a practice known as daylight saving time (DST). In
2090-600: Is in the North American Central Time Zone , is " −06:00 " for the winter (Central Standard Time) and " −05:00 " for the summer (Central Daylight Time). Time zones are often represented by alphabetic abbreviations such as "EST", "WST", and "CST", but these are not part of the international time and date standard ISO 8601 . Such designations can be ambiguous; for example, "CST" can mean (North American) Central Standard Time (UTC−06:00), Cuba Standard Time (UTC−05:00) and China Standard Time (UTC+08:00), and it
2200-542: Is known as Australian Western Standard Time . Principal cities: Shanghai , Beijing , Guangzhou , Hangzhou , Suzhou , Xiamen , Shenzhen , Taipei , Taichung , Kaohsiung , Hong Kong , Macau , Kuala Lumpur , Singapore , Manila , Quezon City , Makassar , Denpasar , Manado , Perth , Irkutsk , Ulaanbaatar , Bandar Seri Begawan This section is only partly updated for longitudes using other time zones. This concerns areas within 112°30′ E to 127°30′ E longitude. The southern half of Vietnam ( Republic of Vietnam )
2310-672: Is partially sheltered by the Mendip Hills, it is exposed to the Severn Estuary and the Bristol Channel . Rain is fairly evenly distributed throughout the year, with autumn and winter the wetter seasons. The Atlantic Ocean influences Bristol's weather, keeping its average temperature above freezing throughout the year, but winter frosts are frequent and snow occasionally falls from early November to late April. Summers are warm and drier, with variable sunshine, rain and clouds, and spring weather
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#17328456398742420-454: Is represented by 5 constituencies, East , North East , North West , South , and Central . The city has a tradition of political activism. Edmund Burke , MP for the Bristol constituency for six years beginning in 1774, insisted that he was a Member of Parliament first and a representative of his constituents' interests second. Women's-rights advocate Emmeline Pethick-Lawrence (1867–1954)
2530-462: Is to allow the more efficient use of afternoon sunlight. Some of these locations also use daylight saving time (DST), further increasing the difference to local solar time. As a result, in summer, solar noon in the Spanish city of Vigo occurs at 14:41 clock time. This westernmost area of continental Spain never experiences sunset before 18:00 clock time, even in winter, despite lying 42 degrees north of
2640-1017: Is unsettled. The weather stations nearest Bristol for which long-term climate data are available are Long Ashton (about 5 mi (8 km) south west of the city centre) and Bristol Weather Station, in the city centre. Data collection at these locations ended in 2002 and 2001, respectively, and following the closure of Filton Airfield, Almondsbury is the nearest weather station to the city. Temperatures at Long Ashton from 1959 to 2002 ranged from 33.5 °C (92.3 °F) in July 1976 to −14.4 °C (6.1 °F) in January 1982. Monthly high temperatures since 2002 at Filton exceeding those recorded at Long Ashton include 25.7 °C (78.3 °F) in April 2003, 34.5 °C (94.1 °F) in July 2006 and 26.8 °C (80.2 °F) in October 2011. The lowest recent temperature at Filton
2750-576: Is unusual among major British towns and cities in its larger black than Asian population. These statistics apply to the Bristol Unitary Authority area, excluding areas of the urban area (2006 estimated population 587,400) in South Gloucestershire, Bath and North East Somerset (BANES) and North Somerset—such as Kingswood, Mangotsfield, Filton and Warmley. 56.2% of the 209,995 Bristol residents who are employed commute to work using either
2860-583: Is updated whenever time zone or daylight saving time rules change. Oracle provides an updater tool for this purpose. As an alternative to the information bundled with the Java Platform, programmers may choose to use the Joda-Time library. This library includes its own data based on the IANA time zone database. As of Java 8 there is a new date and time API that can help with converting times. Traditionally, there
2970-403: Is usually converted to local time when displayed to the user, and times specified by the user in local time are converted to Unix time. The conversion takes into account the time zone and daylight saving time rules; by default the time zone and daylight saving time rules are set up when the system is configured, though individual processes can specify time zones and daylight saving time rules using
3080-526: The Anglo-Spanish War (1585–1604) . Bristol's illicit trade grew enormously after 1558, becoming integral to its economy. The original Diocese of Bristol was founded in 1542, when the former Abbey of St. Augustine (founded by Robert Fitzharding four hundred years earlier) became Bristol Cathedral . Bristol also gained city status that year. In the 1640's, during the English Civil War ,
3190-791: The Appalachian Mountains . Dowd's system was never accepted by North American railroads. Chief meteorologist at the United States Weather Bureau Cleveland Abbe divided the United States into four standard time zones for consistency among the weather stations. In 1879, he published a paper titled Report on Standard Time . In 1883, he convinced North American railroad companies to adopt his time-zone system. In 1884, Britain, which had already adopted its own standard time system for England, Scotland, and Wales, helped gather international consent for global time. In time,
3300-912: The Ashton Court Estate , South Bristol crematorium and cemetery, High Ridge common and Whitchurch, with a further area around Frenchay Farm. The belt extends outside the city boundaries into surrounding counties and districts, for several miles in places, to afford a protection from urban sprawl to surrounding villages and towns. According to the 2011 census , 84% of the population was White (77.9% White British , 0.9% White Irish , 0.1% Gypsy or Irish Travellers and 5.1% Other White ); 3.6% mixed-race (1.7% white-and-black Caribbean, 0.4% white-and-black African, 0.8% white and Asian and 0.7% other mixed); 5.5% Asian (1.6% Pakistani , 1.5% Indian , 0.9% Chinese , 0.5% Bangladeshi , and 1% other Asian); 6% Black (2.8% African, 1.6% Caribbean , 1.6% Other Black ), 0.3% Arab and 0.6% with other heritage. Bristol
3410-458: The Black Death of 1348–49, which checked population growth, and its population remained between 10,000 and 12,000 for most of the 15th and 16th centuries. During the 15th century, Bristol was the second most important port in the country, trading with Ireland, Iceland and Gascony . It was the starting point for many voyages, including Robert Sturmy 's (1457–58) unsuccessful attempt to break
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3520-520: The Greater Bristol area ( eleventh most populous urban area in the United Kingdom) and nearby places such as Bath . Iron Age hillforts and Roman villas were built near the confluence of the rivers Frome and Avon. Bristol received a royal charter in 1155 and was historically divided between Gloucestershire and Somerset until 1373 when it became a county corporate . From the 13th to
3630-537: The IANA time zone database and includes the ability to get, set and convert between time zones. The DateTime objects and related functions have been compiled into the PHP core since 5.2. This includes the ability to get and set the default script time zone, and DateTime is aware of its own time zone internally. PHP.net provides extensive documentation on this. As noted there, the most current time zone database can be implemented via
3740-523: The IRA , in 1974 and again in 1978 . The 20th-century relocation of the docks to Avonmouth Docks and Royal Portbury Dock , 7 mi (11 km) downstream from the city centre, has allowed the redevelopment of the old dock area (the Floating Harbour). Although the docks' existence was once in jeopardy (since the area was seen as a derelict industrial site), the inaugural 1996 International Festival of
3850-692: The International Meridian Conference , where it received some consideration. The system has not been directly adopted, but some maps divide the world into 24 time zones and assign letters to them, similarly to Fleming's system. By about 1900, almost all inhabited places on Earth had adopted a standard time zone, but only some of them used an hourly offset from GMT. Many applied the time at a local astronomical observatory to an entire country, without any reference to GMT. It took many decades before all time zones were based on some standard offset from GMT or Coordinated Universal Time (UTC). By 1929,
3960-449: The Kennet and Avon Canal , which had fully opened in 1810 as the main route for the transport of goods between Bristol and London. Competition from Liverpool (beginning around 1760), disruptions of maritime commerce due to war with France (1793) and the abolition of the slave trade (1807) contributed to Bristol's failure to keep pace with the newer manufacturing centres of Northern England and
4070-622: The Memorial Stadium . The city has two universities; the University of Bristol and the University of the West of England (UWE Bristol). It is connected to the world by Bristol Airport ; to the rest of the Great Britain via Bristol Temple Meads and Bristol Parkway mainline rail stations; by road by both the south-west to West Midlands M5 and the London to South Wales M4 (which connect to
4180-647: The PECL timezonedb. Bristol Bristol ( / ˈ b r ɪ s t əl / ) is a city , unitary authority area and ceremonial county in South West England , the most populous city in the region. Built around the River Avon , it is bordered by the ceremonial counties of Gloucestershire to the north and Somerset to the south. The county is in the West of England combined authority area, which includes
4290-568: The Standard Time Act of March 19, 1918. Italian mathematician Quirico Filopanti introduced the idea of a worldwide system of time zones in his book Miranda! , published in 1858. He proposed 24 hourly time zones, which he called "longitudinal days", the first centred on the meridian of Rome . He also proposed a universal time to be used in astronomy and telegraphy. However, his book attracted no attention until long after his death. Scottish -born Canadian Sir Sandford Fleming proposed
4400-507: The TZ environment variable . This allows users in multiple time zones, or in the same time zone but with different daylight saving time rules, to use the same computer, with their respective local times displayed correctly to each user. Time zone and daylight saving time rule information most commonly comes from the IANA time zone database . In fact, many systems, including anything using the GNU C Library ,
4510-545: The West Midlands . The tidal Avon Gorge, which had secured the port during the Middle Ages, had become a liability. An 1804–09 plan to improve the city's port with a floating harbour designed by William Jessop was a costly error, requiring high harbour fees. During the 19th century, Samuel Plimsoll , known as "the sailor's friend", campaigned to make the seas safer; shocked by overloaded vessels, he successfully fought for
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4620-580: The 12th century. An older form of the name survives as the surname Bristow , which is derived from the city. Archaeological finds, including flint tools believed to be between 300,000 and 126,000 years old made with the Levallois technique , indicate the presence of Neanderthals in the Shirehampton and St Annes areas of Bristol during the Middle Palaeolithic . Iron Age hill forts near
4730-526: The 18th century, Bristol was among the top three English cities, after London, in tax receipts. A major port , Bristol was a starting place for early voyages of exploration to the New World. At the height of the Bristol slave trade , from 1700 to 1807, more than 2,000 slave ships carried an estimated 500,000 people from Africa to slavery in the Americas. The Port of Bristol has since moved from Bristol Harbour in
4840-531: The American government, influenced in part by Abbe's 1879 paper, adopted the time-zone system. It was a version proposed by William F. Allen, the editor of the Traveler's Official Railway Guide . The borders of its time zones ran through railroad stations, often in major cities. For example, the border between its Eastern and Central time zones ran through Detroit , Buffalo , Pittsburgh , Atlanta , and Charleston . It
4950-614: The Future 's 2008 Sustainable Cities Index. Local initiatives include Sustrans (creators of the National Cycle Network , founded as Cyclebag in 1977) and Resourcesaver, a non-profit business established in 1988 by Avon Friends of the Earth. In 2014 The Sunday Times named it as the best city in Britain in which to live. The city received the 2015 European Green Capital Award , becoming
5060-487: The Italian monopoly of Eastern Mediterranean trade. New exploration voyages were launched by Venetian John Cabot , who in 1497 made landfall in North America. A 1499 voyage, led by merchant William Weston of Bristol, was the first expedition commanded by an Englishman to North America . During the first decade of the 16th century Bristol's merchants undertook a series of exploration voyages to North America and even founded
5170-635: The New York Stock Exchange opens at These calculations become more complicated near the time switch to or from daylight saving time, as the UTC offset for the area becomes a function of UTC time. The time differences may also result in different dates. For example, when it is 22:00 on Monday in Egypt (UTC+02:00), it is 01:00 on Tuesday in Pakistan (UTC+05:00). The table "Time of day by zone" gives an overview on
5280-607: The Sea held in and around the docks affirmed the area as a leisure asset of the city. From 2018, there were lively discussions about a new explicative plaque under a commemorative statue of one of the city's major benefactors in the 17th and 18th centuries. The plaque was meant to replace an original which made no reference to Edward Colston 's past with the Royal African Company and the Bristol Slave Trade . On 7 June 2020
5390-528: The Sun in the sky, and thus solar time , varies by location due to the spherical shape of the Earth. This variation corresponds to four minutes of time for every degree of longitude , so for example when it is solar noon in London , it is about 10 minutes before solar noon in Bristol , which is about 2.5 degrees to the west. The Royal Observatory, Greenwich , founded in 1675, established Greenwich Mean Time (GMT),
5500-588: The Terminal Server so that users see the correct time for their time zone in their desktop/application sessions. Terminal Services uses the server base time on the Terminal Server and the client time zone information to calculate the time in the session. While most application software will use the underlying operating system for time zone and daylight saving time rule information, the Java Platform , from version 1.3.1, has maintained its own database of time zone and daylight saving time rule information. This database
5610-526: The US version shows Eastern Time . US Eastern Time and Pacific Time are also used fairly commonly on many US-based English-language websites with global readership. The format is typically based in the W3C Note "datetime". Email systems and other messaging systems ( IRC chat , etc.) time-stamp messages using UTC, or else include the sender's time zone as part of the message, allowing the receiving program to display
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#17328456398745720-546: The arrest, trial and subsequent acquittal of a local slaver captain named Kimber. The city was associated with Victorian engineer Isambard Kingdom Brunel , who designed the Great Western Railway between Bristol and London Paddington , two pioneering Bristol-built oceangoing steamships ( SS Great Britain and SS Great Western ), and the Clifton Suspension Bridge . The new railway replaced
5830-464: The article on daylight saving time for more details on this aspect.) Web servers presenting web pages primarily for an audience in a single time zone or a limited range of time zones typically show times as a local time, perhaps with UTC time in brackets. More internationally oriented websites may show times in UTC only or using an arbitrary time zone. For example, the international English-language version of CNN includes GMT and Hong Kong Time, whereas
5940-465: The begin and end dates of daylight saving time are changed, calendar entries should stay the same in local time, even though they may shift in UTC time. Unix-like systems, including Linux and macOS , keep system time in Unix time format, representing the number of seconds (excluding leap seconds ) that have elapsed since 00:00:00 Coordinated Universal Time (UTC) on Thursday, January 1, 1970. Unix time
6050-543: The calendar events are assumed to take place in the time zone the computer or smartphone was on when creating the event. The event can be shown at the wrong time. For example, if a New Yorker plans to meet someone in Los Angeles at 9 am, and makes a calendar entry at 9 am (which the computer assumes is New York time), the calendar entry will be at 6 am if taking the computer's time zone. Calendaring software must also deal with daylight saving time (DST). If, for political reasons,
6160-560: The castle. A third bomb-damaged church nearby, St Nicholas was restored and after a period as a museum has now re-opened as a church. It houses a 1756 William Hogarth triptych painted for the high altar of St Mary Redcliffe . The church also has statues of King Edward I (moved from Arno's Court Triumphal Arch ) and King Edward III (taken from Lawfords' Gate in the city walls when they were demolished about 1760), and 13th-century statues of Robert, 1st Earl of Gloucester (builder of Bristol Castle ) and Geoffrey de Montbray (who built
6270-523: The city was occupied by Royalists , who built the Royal Fort House on the site of an earlier Parliamentarian stronghold. Fishermen from Bristol, who had fished the Grand Banks of Newfoundland since the 16th century, began settling Newfoundland permanently in larger numbers during the 17th century, establishing colonies at Bristol's Hope and Cuper's Cove . Growth of the city and trade came with
6380-478: The city are at Leigh Woods and Clifton Down , on the side of the Avon Gorge , and on Kings Weston Hill near Henbury . A Roman settlement, Abona, existed at what is now Sea Mills (connected to Bath by a Roman road ); another was at the present-day Inns Court . Isolated Roman villas and small forts and settlements were also scattered throughout the area. Bristol was founded by 1000; by about 1020, it
6490-654: The city centre by the Portway and M32 ). Bristol was named the best city in Britain in which to live in 2014 and 2017; it won the European Green Capital Award in 2015. The name derives from the Old English Brycgstow , meaning "assembly place by the bridge" or simply "site of the bridge", presumably in reference to a crossing over the Avon. The final l is an unetymological addition that first appears in
6600-570: The city centre to the Severn Estuary at Avonmouth and Royal Portbury Dock . The city's modern economy is built on the creative media, electronics and aerospace industries; the city-centre docks have been redeveloped as cultural and heritage centres. There are a variety of artistic and sporting organisations and venues including the Royal West of England Academy , the Arnolfini , Ashton Gate and
6710-417: The city's walls) from Bristol's Newgate . The rebuilding of Bristol city centre was characterised by 1960s and 1970s skyscrapers , mid-century modern architecture and road building . Beginning in the 1980s some main roads were closed , the Georgian-era Queen Square and Portland Square were restored, the Broadmead shopping area regenerated, and one of the city centre's tallest mid-century towers
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#17328456398746820-876: The city, and its surrounding land has been protected from development as The Downs and Leigh Woods. The Avon estuary and the gorge form the county boundary with North Somerset , and the river flows into the Severn Estuary at Avonmouth . A smaller gorge, cut by the Hazel Brook which flows into the River Trym , crosses the Blaise Castle estate in northern Bristol. Bristol is sometimes described, by its inhabitants, as being built on seven hills, like Rome. From 18th-century guidebooks, these 7 hills were known as simply Bristol (the Old Town), Castle Hill, College Green, Kingsdown, St Michaels Hill, Brandon Hill and Redcliffe Hill. Other local hills include Red Lion Hill, Barton Hill , Lawrence Hill , Black Boy Hill, Constitution Hill, Staple Hill , Windmill Hill , Malborough Hill, Nine Tree Hill, Talbot, Brook Hill and Granby Hill. Bristol
6930-412: The city-council boundary, such as Kingswood , Mangotsfield , Stoke Gifford , Winterbourne , Almondsbury , Easton in Gordano , Whitchurch village, Filton , Patchway and Bradley Stoke , but excludes undeveloped areas within that boundary. Bristol lies within a limestone area running from the Mendip Hills in the south to the Cotswolds in the northeast. The rivers Avon and Frome cut through
7040-399: The council. Between 2012 and 2024, the council was led by a directly elected mayor, the Mayor of Bristol . The post was abolished following a 2022 referendum, in which voters chose to replace it with a council committee system. The lord mayor of Bristol is a figurehead elected each May by the city council. The lord mayor is Councillor Andrew Varney. In the House of Commons , Bristol
7150-429: The country changed to UTC+09:00 as the official time zone. Time zone A time zone is an area which observes a uniform standard time for legal , commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude , because it is convenient for areas in frequent communication to keep the same time. Each time zone
7260-427: The country with 237, as against London's 147. It was a major supplier of slaves to South Carolina before 1750. The 18th century saw an expansion of Bristol's population (45,000 in 1750) and its role in the Atlantic trade in Africans taken for slavery to the Americas. Bristol and later Liverpool became centres of the Triangular Trade . Manufactured goods were shipped to West Africa and exchanged for Africans;
7370-401: The early 1900s by the Royal Edward Dock. Another new dock, the Royal Portbury Dock , opened across the river from Avonmouth during the 1970s. As air travel grew in the first half of the century, aircraft manufacturers built factories. The unsuccessful Bristol International Exhibition was held on Ashton Meadows in the Bower Ashton area in 1914. After the premature closure of the exhibition
7480-420: The enslaved captives were transported across the Atlantic to the Americas in the Middle Passage under brutal conditions. Plantation goods such as sugar, tobacco, rum, rice, cotton and a few slaves (sold to the aristocracy as house servants) returned across the Atlantic to England. Some household slaves were baptised in the hope this would lead them to be freed. The Somersett Case of 1772 clarified that slavery
7590-409: The equator. Near the summer solstice , Vigo has sunset times after 22:00, similar to those of Stockholm , which is in the same time zone and 17 degrees farther north. Stockholm has much earlier sunrises, though. In the United States, the reasons were more historical and business-related. In Midwestern states, like Indiana and Michigan , those living in Indianapolis and Detroit wanted to be on
7700-465: The first UK city to receive this award. In 2019 Bristol City Council voted in favour of banning all privately owned diesel cars from the city centre. Since then, the plans have been revised in favour of a clean air zone whereby older and more polluting vehicles will be charged to drive through the city centre. The Clean Air Zone came into effect in November 2022. The city has green belt mainly along its southern fringes, taking in small areas within
7810-449: The greatest terrestrial time zone difference on Earth, with a 3.5 hour difference between Afghanistan's UTC+4:30 and China's UTC+08:00 . Many countries, and sometimes just certain regions of countries, adopt daylight saving time (DST), also known as summer time, during part of the year. This typically involves advancing clocks by an hour near the start of spring and adjusting back in autumn ("spring forward", "fall back"). Modern DST
7920-457: The history of the Irish slave trade from Bristol, which he provocatively claimed continued into the reign of Henry VII . Hannah More , originally from Bristol, and a good friend of both Wilberforce and Clarkson, published "Slavery, A Poem" in 1788, just as Wilberforce began his parliamentary campaign. His major speech on 2 April 1792 likewise described the Bristol slave trade specifically, and led to
8030-529: The import and processing of tobacco flourished with the expansion of the W.D. & H.O. Wills business. Supported by new industry and growing commerce, Bristol's population (66,000 in 1801), quintupled during the 19th century, resulting in the creation of new suburbs such as Clifton and Cotham . These provide architectural examples from the Georgian to the Regency style, with many fine terraces and villas facing
8140-484: The limestone to the underlying clay, creating Bristol's characteristically hilly landscape. The Avon flows from Bath in the east, through flood plains and areas which were marshes before the city's growth. To the west the Avon cuts through the limestone to form the Avon Gorge, formed largely by glacial meltwater after the last ice age . The gorge, which helped protect Bristol Harbour, has been quarried for stone to build
8250-512: The local time and one for GMT. On November 2, 1868, the British Colony of New Zealand officially adopted a standard time to be observed throughout the colony. It was based on longitude 172°30′ east of Greenwich , that is 11 hours 30 minutes ahead of GMT. This standard was known as New Zealand Mean Time . Timekeeping on North American railroads in the 19th century was complex. Each railroad used its own standard time, usually based on
8360-413: The local time of its headquarters or most important terminus, and the railroad's train schedules were published using its own time. Some junctions served by several railroads had a clock for each railroad, each showing a different time. Because of this a number of accidents occurred when trains from different companies using the same tracks mistimed their passings. Around 1863, Charles F. Dowd proposed
8470-554: The majority of countries had adopted hourly time zones, though some countries such as Iran , India , Myanmar and parts of Australia had time zones with a 30-minute offset. Nepal was the last country to adopt a standard offset, shifting slightly to UTC+05:45 in 1986. All nations currently use standard time zones for secular purposes, but not all of them apply the concept as originally conceived. Several countries and subdivisions use half-hour or quarter-hour deviations from standard time. Some countries, such as China and India , use
8580-583: The mean solar time at that location, as an aid to mariners to determine longitude at sea, providing a standard reference time while each location in England kept a different time. In the 19th century, as transportation and telecommunications improved, it became increasingly inconvenient for each location to observe its own solar time. In November 1840, the British Great Western Railway started using GMT kept by portable chronometers . This practice
8690-653: The message's date and time of sending in the recipient's local time. Database records that include a time stamp typically use UTC, especially when the database is part of a system that spans multiple time zones. The use of local time for time-stamping records is not recommended for time zones that implement daylight saving time because once a year there is a one-hour period when local times are ambiguous. Calendar systems nowadays usually tie their time stamps to UTC, and show them differently on computers that are in different time zones. That works when having telephone or internet meetings. It works less well when travelling, because
8800-416: The necessary support for working with all (or almost all) possible local times based on the various time zones. Internally, operating systems typically use UTC as their basic time-keeping standard , while providing services for converting local times to and from UTC, and also the ability to automatically change local time conversions at the start and end of daylight saving time in the various time zones. (See
8910-490: The neighbouring village of Kingswood , often in the open air. Wesley published a pamphlet on slavery, titled Thoughts Upon Slavery, in 1774 and the Society of Friends began lobbying against slavery in Bristol in 1783. The city's scions remained nonetheless strongly anti-abolitionist. Thomas Clarkson came to Bristol to study the slave trade and gained access to the Society of Merchant Venturers records. One of his contacts
9020-433: The rise of England's American colonies in the 17th century. Bristol's location on the west side of Great Britain gave its ships an advantage in sailing to and from the New World, and the city's merchants made the most of it, with the city becoming one of the two leading outports in all of England by the middle of the 18th century. Bristol was the slave capital of England: In 1755, it had the largest number of slave traders in
9130-483: The road, and at right angles to it. In the early 19th century, the romantic medieval gothic style appeared, partially as a reaction against the symmetry of Palladianism , and can be seen in buildings such as the Bristol City Museum and Art Gallery , the Royal West of England Academy , and The Victoria Rooms . Riots broke out in 1793 and 1831; the first over the renewal of tolls on Bristol Bridge, and
9240-486: The same meridian but north of the Arctic Circle, has two sunsets on the same day in early August, one shortly after midnight at the start of the day, and the other shortly before midnight at the end of the day. China extends as far west as 73°E , but all parts of it use UTC+08:00 ( 120°E ), so solar "noon" can occur as late as 15:00 in western portions of China such as Xinjiang . The Afghanistan-China border marks
9350-419: The same time zone as New York to simplify communications and transactions. A more extreme example is Nome, Alaska , which is at 165°24′W longitude – just west of center of the idealized Samoa Time Zone ( 165°W ). Nevertheless, Nome observes Alaska Time ( 135°W ) with DST so it is slightly more than two hours ahead of the sun in winter and over three in summer. Kotzebue, Alaska , also near
9460-509: The second against the rejection of the second Reform Bill by the House of Lords . The population by 1841 had reached 140,158. The Diocese of Bristol had undergone several boundary changes by 1897 when it was "reconstituted" into the configuration which has lasted into the 21st century. From a population of about 330,000 in 1901, Bristol grew steadily during the 20th century, peaking at 428,089 in 1971. Its Avonmouth docklands were enlarged during
9570-507: The site was used, until 1919, as barracks for the Gloucestershire Regiment during World War I . Bristol was heavily damaged by Luftwaffe raids during World War II ; about 1,300 people living or working in the city were killed and nearly 100,000 buildings were damaged, at least 3,000 beyond repair. The original central shopping area, near the bridge and castle, is now a park containing two bombed churches and fragments of
9680-403: The socioeconomic circumstances of the city's Afro-Caribbean residents. Local support of fair trade was recognised in 2005, when Bristol became a fairtrade zone . Bristol is both a city and a county, since King Edward III granted it a county charter in 1373. The county was expanded in 1835 to include suburbs such as Clifton , and it was named a county borough in 1889 when that designation
9790-465: The system time to be fetched as a count of 100 ns units since 1601-01-01 00:00:00 UTC. The system registry contains time zone information that includes the offset from UTC and rules that indicate the start and end dates for daylight saving in each zone. Interaction with the user normally uses local time, and application software is able to calculate the time in various zones. Terminal Servers allow remote computers to redirect their time zone settings to
9900-546: The table below, the locations that use daylight saving time (DST) are listed in their UTC offset when DST is not in effect. When DST is in effect, approximately during spring and summer, their UTC offset is increased by one hour (except for Lord Howe Island , where it is increased by 30 minutes). For example, during the DST period California observes UTC−07:00 and the United Kingdom observes UTC+01:00 . The apparent position of
10010-519: The time being described is one hour ahead of UTC (such as the time in Germany during the winter), the zone designator would be " +01:00 ", "+0100", or simply "+01". This numeric representation of time zones is appended to local times in the same way that alphabetic time zone abbreviations (or "Z", as above) are appended. The offset from UTC changes with daylight saving time , e.g. a time offset in Chicago , which
10120-548: The time relations between different zones. Since the 1920s, a nautical standard time system has been in operation for ships on the high seas . As an ideal form of the terrestrial time zone system, nautical time zones consist of gores of 15° offset from GMT by a whole number of hours. A nautical date line follows the 180th meridian, bisecting one 15° gore into two 7.5° gores that differ from GMT by ±12 hours. However, in practice each ship may choose what time to observe at each location. Ships may decide to adjust their clocks at
10230-465: The war. Similarly, prior to World War II, the Netherlands observed "Amsterdam Time", which was twenty minutes ahead of Greenwich Mean Time. They were obliged to follow German time during the war, and kept it thereafter. In the mid-1970s the Netherlands, as other European states, began observing daylight saving (summer) time. One reason to draw time zone boundaries far to the west of their ideal meridians
10340-565: The west, and some countries are located entirely outside their ideal time zones. For example, even though the Prime Meridian (0°) passes through Spain and France , they use the mean solar time of 15 degrees east ( Central European Time ) rather than 0 degrees (Greenwich Mean Time). France previously used GMT, but was switched to CET (Central European Time) during the German occupation of the country during World War II and did not switch back after
10450-531: The western Severn Estuary ending at (but not including) the islands of Flat Holm (in Cardiff , Wales) and Steep Holm . This "seaward extension" can be traced back to the original boundary of the County of Bristol laid out in the charter granted to the city by Edward III in 1373. The Office for National Statistics (ONS) has defined a Bristol Urban Area , which includes developed areas adjoining Bristol but outside
10560-540: The western reaches of China. In Russia, which has 11 time zones , two time zones were removed in 2010 and reinstated in 2014. ISO 8601 is a standard established by the International Organization for Standardization defining methods of representing dates and times in textual form, including specifications for representing time zones. If a time is in Coordinated Universal Time (UTC), a "Z"
10670-459: Was Detroit (located about halfway between the meridians of Eastern and Central time), which kept local time until 1900, then tried Central Standard Time, local mean time , and Eastern Standard Time (EST) before a May 1915 ordinance settled on EST and was ratified by popular vote in August 1916. The confusion of times came to an end when standard time zones were formally adopted by the U.S. Congress in
10780-531: Was a trading centre with a mint producing silver pennies bearing its name. By 1067, Brycgstow was a well-fortified burh , and that year the townsmen beat back a raiding party from Ireland led by three of Harold Godwinson 's sons. Under Norman rule, the town had one of the strongest castles in southern England . Bristol was the place of exile for Diarmait Mac Murchada , the Irish king of Leinster , after being overthrown. The Bristol merchants subsequently played
10890-557: Was born in Bristol, and the left-winger Tony Benn served as MP for Bristol South East in 1950–1960 and again from 1963 to 1983. In 1963 the Bristol Bus Boycott , following the Bristol Omnibus Company 's refusal to hire black drivers and conductors, drove the passage of the UK's 1965 Race Relations Act . The 1980 St. Pauls riot protested against racism and police harassment and showed mounting dissatisfaction with
11000-510: Was demolished. Bristol's road infrastructure changed dramatically during the 1960s and 1970s with the development of the M4 and M5 motorways , which meet at the Almondsbury Interchange just north of the city and link Bristol with London (M4 eastbound), Swansea (M4 westbound across the Severn Estuary ), Exeter (M5 southbound) and Birmingham (M5 northbound). Bristol was bombed twice by
11110-415: Was first proposed in 1907 and was in widespread use in 1916 as a wartime measure aimed at conserving coal . Despite controversy , many countries have used it off and on since then; details vary by location and change occasionally. Countries around the equator usually do not observe daylight saving time, since the seasonal difference in sunlight there is minimal. Many computer operating systems include
11220-599: Was formerly part of this time zone prior to the national reunification on 30 April 1975, making it one hour ahead of North Vietnam . After 1975, the whole country came under the North Vietnamese time zone, UTC+07:00. According to Presidential Decree 41/1987, Indonesia's ex-province of Timor Timur used this time zone with neighboring East Nusa Tenggara and other provinces in Lesser Sunda Islands, parts of Kalimantan and Sulawesi until independence as East Timor , which
11330-467: Was illegal in England. At the height of the Bristol slave trade from 1700 to 1807, more than 2,000 slave ships carried a conservatively estimated 500,000 people from Africa to slavery in the Americas. In 1739, John Wesley founded the first Methodist chapel, the New Room , in Bristol. Wesley, along with his brother Charles Wesley and George Whitefield , preached to large congregations in Bristol and
11440-403: Was inaugurated on Sunday, November 18, 1883, also called "The Day of Two Noons", when each railroad station clock was reset as standard-time noon was reached within each time zone. The North American zones were named Intercolonial, Eastern, Central, Mountain, and Pacific. Within a year 85% of all cities with populations over 10,000 (about 200 cities) were using standard time. A notable exception
11550-619: Was introduced. On 1 April 1974, Bristol became a local government district of the county of Avon . On 1 April 1996, Avon was abolished and Bristol became a unitary authority . The former Avon area, called Greater Bristol by the Government Office of the South West (now abolished) and others, refers to the city and the three neighbouring local authorities— Bath and North East Somerset , North Somerset and South Gloucestershire previously in Avon. The North Fringe of Bristol ,
11660-413: Was replaced by the current bridge during the 1760s. The town incorporated neighbouring suburbs and became a county in 1373, the first town in England to be given this status. During this period, Bristol became a shipbuilding and manufacturing centre. By the 14th century, Bristol, York and Norwich were England's largest medieval towns after London. One-third to one-half of the population died in
11770-516: Was soon followed by other railway companies in Great Britain and became known as railway time . Around August 23, 1852, time signals were first transmitted by telegraph from the Royal Observatory. By 1855, 98% of Great Britain's public clocks were using GMT, but it was not made the island's legal time until August 2, 1880. Some British clocks from this period have two minute hands, one for
11880-454: Was the owner of the Seven Stars public house , who boarded sailors Clarkson sought to meet. Through these sailors he was able to observe how slaver captains and first mates "plied and stupefied seamen with drink" to sign them up. Other informants included ship surgeons and seamen seeking redress. When William Wilberforce began his parliamentary abolition campaign on 12 May 1788, he recalled
11990-665: Was very little in the way of time zone support for JavaScript . Essentially the programmer had to extract the UTC offset by instantiating a time object, getting a GMT time from it, and differencing the two. This does not provide a solution for more complex daylight saving variations, such as divergent DST directions between northern and southern hemispheres. ECMA-402, the standard on Internationalization API for JavaScript, provides ways of formatting Time Zones. However, due to size constraint, some implementations or distributions do not include it. The DateTime object in Perl supports all entries in
12100-514: Was −10.1 °C (13.8 °F) in December 2010. Although large cities in general experience an urban heat island effect, with warmer temperatures than their surrounding rural areas, this phenomenon is minimal in Bristol. Bristol was ranked as Britain's most sustainable city (based on its environmental performance, quality of life, future-proofing and approaches to climate change, recycling and biodiversity), topping environmental charity Forum for
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