AST is UTC-4

The Atlantic Standard Time Zone (AST) is a geographic region that keeps time by subtracting four hours from Greenwich Mean Time (GMT), resulting in GMT-4 (UTC-4). The clock time in this zone is based on the mean solar time of the 60th degree meridian west of the Greenwich Observatory. Image File history File links Download high resolution version (515x697, 107 KB)cut from CIA map File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Download high resolution version (515x697, 107 KB)cut from CIA map File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... For alternate meanings of GMT, see GMT (disambiguation). ... // UTC−4 is the time offset used in the Atlantic Standard Time Zone in Canada in winter and the North American Eastern Time Zone during daylight saving time (DST), as well as other countries. ... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... Solar time is based on the idea that, when the sun reaches its highest point in the sky, it is noon. ... On the earth, a meridian is a north-south line between the North Pole and the South Pole. ... Royal Observatory, Greenwich The original site of the Royal Greenwich Observatory (RGO), which was built as a workplace for the Astronomer Royal, was on a hill in Greenwich Park in Greenwich, London, overlooking the River Thames. ...

In Canada, the provinces of New Brunswick, Prince Edward Island, Nova Scotia, and small portions of Quebec (eastern Côte-Nord and the Magdalen Islands) are part of the Atlantic Standard Time Zone. Officially, the entirety of Newfoundland and Labrador observes Newfoundland Standard Time,^[1] but in practise Labrador uses the Atlantic Standard Time Zone. Province is a name for a secondary, or subnational entity of government in most countries. ... This article is about the Canadian province. ... This article is about the Canadian province. ... Motto: Munit Haec et Altera Vincit (Latin: One defends and the other conquers) Capital Halifax Largest city Halifax Regional Municipality Official languages English (de facto) Government Lieutenant-Governor Mayann E. Francis Premier Rodney MacDonald (PC) Federal representation in Canadian Parliament House seats 11 Senate seats 10 Confederation July 1, 1867... This article is about the Canadian province. ... Map of Cote-Nord in relation to Quebec Côte-Nord (literally Northern Coast) is the second largest administrative (235,742 km², 17%) region by land area in Quebec, Canada, after Nord-du-Quebec. ... The Magdalen Islands The Magdalen Islands (French, ÃŽles de la Madeleine) form a small archipelago in the Gulf of Saint Lawrence with a land area of 205. ... This article is about the Canadian province of Newfoundland and Labrador. ... Labrador (also Coast of Labrador) is a region of Atlantic Canada. ...

Other parts of the world that keep time by subtracting four hours from UTC include Bermuda, in the North Atlantic; many Caribbean islands, including Puerto Rico, the US Virgin Islands; and several South American countries, such as Paraguay, Chile, Bolivia, and parts of Brazil. Venezuela currently uses AST, but will switch to UTC-4:30 on December 9, 2007. For other uses, see Atlantic (disambiguation) The Atlantic Ocean is Earths second-largest ocean, covering approximately one-fifth of its surface. ... West Indies redirects here. ... South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. ... is the 343rd day of the year (344th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ...

AST is known (where applicable) as Atlantic Daylight Time (ADT) during daylight saving time, and has one hour added to make it three hours behind GMT (GMT-3). In the southern hemisphere, it will be winter when the northern hemisphere is experiencing summer. Although DST is common in Europe and North America, most of the worlds people do not use it. ... // Argentina, Suriname Uruguay** Brazil - official time Alagoas, Amapá, Bahia (no DST since 2003), Ceará, Distrito Federal**, Espírito Santo**, Goiás**, Maranhão, Minas Gerais**, Pará (eastern), Paraíba, Paraná**, Pernambuco, Piauí, Rio de Janeiro**, Rio Grande do Norte, Rio Grande do Sul**, Santa Catarina**, São Paulo**, Sergipe, Tocantins...

Major metropolitan areas

• Asunción, Paraguay
• Barquisimeto, Venezuela
• Bridgetown, Barbados
• Cape Breton Regional Municipality, Nova Scotia
• Caracas, Venezuela
• Charlotte Amalie, U.S. Virgin Islands
• Charlottetown, Prince Edward Island
• Ciudad Guayana, Venezuela
• Concepción, Chile
• Fredericton, New Brunswick
• Georgetown, Guyana
• Halifax, Nova Scotia
• Hamilton, Bermuda
• La Paz, Bolivia
• Manaus, Brazil
• Maracaibo, Venezuela
• Maracay, Venezuela
• Moncton, New Brunswick
• Oranjestad, Aruba
• Port of Spain, Trinidad and Tobago
• Saint John, New Brunswick
• San Juan, Puerto Rico
• Santiago, Chile
• Santo Domingo, Dominican Republic
• Sucre, Bolivia
• Summerside, Prince Edward Island
• Valencia, Venezuela
• Willemstad, Netherlands Antilles

This article does not cite any references or sources. ... Nickname: Motto: (none) Coordinates: , Country Venezuela State Lara Counties Iribarren Municipality Government  - Mayor Henry Falcón (2004 – 2008) Elevation 556 m (2,198 ft) Website: alcaldiadebarquisimeto. ... Bridgetown, population 5,928 (1990), formerly the Town of Saint Michael, is the capital city lies in the Caribbean island nation of Barbados. ... Motto: Fortuna Non Mutat Genus (Circumstances Do Not Change Our Origin) Country Province Established 1995 Government  - Type Regional Council  - Mayor John W. Morgan  - Governing Body Cape Breton Regional Council  - MPs Rodger Cuzner, Mark Eyking  - MLAs Frank Corbett, Cecil Clarke, Gordie Gosse, Manning MacDonald, Alfie MacLeod, David Wilson Area  - Municipality 2... Nickname: La Sultana del Avila (English:The Avilas Sultan) La Sucursal del paraiso Motto: Ave María Santísima, sin pecado concebida, en el primer instante de su ser natural. ... Charlotte Amalie is the capital of the U.S. Virgin Islands, a territory of the United States of America. ... Motto: Template:Unhide = CUNABULA FOEDERIS (Birthplace of Confederation) Location City Information Established: 1764 Area: 44. ... Ciudad Guayana is a city in Venezuela. ... City motto: La Capital del Sur de Chile The Capital of the South of Chile Also called Biobios Pearl Founded October 5, 1550, Original Name La Concepción de María Purísima del Nuevo Extremo Region Bío-Bío Region Area  - City Proper  222 km² Population  - City... Template:Hide = Motto: Template:Unhide = Fredericpolis silvae filia noblis (Fredericton noble daughter of the forest) Established: {{{Established}}} Area: 131. ... This article or section does not adequately cite its references or sources. ... For other uses, see Halifax, Nova Scotia. ... City Hall in Hamilton. ... Central La Paz La Paz is the administrative capital of Bolivia, as well as the departmental capital of La Paz Department. ... Location in Brazil Country Region State Amazonas Founded 1669 Government  - Mayor Serafim Corrêa (PSB) Area  - City 11. ... Nickname: Motto: Muy noble y leal Coordinates: , Country State Counties Maracaibo Government  - Mayor Gian Carlo Di Martino (2000 – 2008) Area  - City 550 km²  (212. ... Nickname: Motto: none Coordinates: , Country Venezuela State Aragua Counties Girardot Government  - Mayor Humberto Prieto (2004 – 2008) Area  - City 311. ... For other uses, see Moncton (disambiguation). ... Center of Oranjestad Oranjestad (Dutch: Orange City), with a population of 26,355 (2000), is the capital and most important city of Aruba located on the southern coast near the western end of the island. ... Port of Spain, population 49,000 (2000), is the capital of Trinidad and Tobago and the countrys second largest city by population, after San Fernando. ... Saint John[3] is the largest city in the province of New Brunswick, and the oldest incorporated city in Canada. ... For other uses, see San Juan. ... Location of Santiago commune in Greater Santiago Coordinates: , Region Province Foundation February 12, 1541 Government  - Mayor Raúl Alcaíno Lihn Area 1  - City 22. ... It has been suggested that Greater Santo Domingo Area be merged into this article or section. ... Categories: South America geography stubs | Capitals in South America | Cities in Bolivia ... Summerside (pop. ... Valencia is the capital city of Carabobo State, Venezuela. ... Willemstad Willemstad is the territorial capital of the Netherlands Antilles. ... Timezone and TimeZone redirect here. ... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... -12 | -11 | -10 | -9:30 | -9 | -8 | -7 | -6 | -5 | -4 | -3:30 | -3 | -2:30 | -2 | -1 | -0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... HST is UTC-10 The Hawaii-Aleutian Time Zone observes Hawaii-Aleutian Standard Time (HST) all year round, by subtracting ten hours from Coordinated Universal Time (UTC-10). ... AKDT is UTC-8 The Alaska Time Zone observes standard time by subtracting nine hours from Coordinated Universal Time (UTC-9). ... PST is UTC-8, highlighted in red. ... Mountain Standard Time (MST) is UTC-7, Mountain Daylight Time (MDT) is UTC-6 The Mountain Time Zone of North America keeps time by subtracting seven hours from Coordinated Universal Time (UTC-7) during the shortest days of autumn and winter, and by subtracting six hours during daylight saving time...  CST or UTC-6 The Central Time Zone observes standard time by subtracting six hours from UTC during standard time (UTC-6) and five hours during daylight saving time (UTC-5). ... Eastern Standard Time redirects here. ... NST is UTC-3:30 The Newfoundland Standard Time Zone (NST) is a geographic region that keeps time by subtracting 3½ hours from Coordinated Universal Time (UTC), resulting in UTC-3:30. ... Motto: A Mare Labor(Latin) From the Sea, Work[] Anthem: La Marseillaise Capital (and largest city) Saint-Pierre Official languages French Government  - President of the General Council Stéphane Artano  - Préfet (Prefect) Yves Fauqueur Collectivité doutre-mera of France   - ceded by the UKe 30 May 1814   - Territoire d... NST is UTC-3:30 The Newfoundland Standard Time Zone (NST) is a geographic region that keeps time by subtracting 3½ hours from Coordinated Universal Time (UTC), resulting in UTC-3:30. ... Motto: A Mare Labor(Latin) From the Sea, Work[] Anthem: La Marseillaise Capital (and largest city) Saint-Pierre Official languages French Government  - President of the General Council Stéphane Artano  - Préfet (Prefect) Yves Fauqueur Collectivité doutre-mera of France   - ceded by the UKe 30 May 1814   - Territoire d... HST is UTC-10 The Hawaii-Aleutian Time Zone observes Hawaii-Aleutian Standard Time (HST) all year round, by subtracting ten hours from Coordinated Universal Time (UTC-10). ... AKDT is UTC-8 The Alaska Time Zone observes standard time by subtracting nine hours from Coordinated Universal Time (UTC-9). ... PST is UTC-8, highlighted in red. ... Mountain Standard Time (MST) is UTC-7, Mountain Daylight Time (MDT) is UTC-6 The Mountain Time Zone of North America keeps time by subtracting seven hours from Coordinated Universal Time (UTC-7) during the shortest days of autumn and winter, and by subtracting six hours during daylight saving time...  CST or UTC-6 The Central Time Zone observes standard time by subtracting six hours from UTC during standard time (UTC-6) and five hours during daylight saving time (UTC-5). ... Eastern Standard Time redirects here. ...

Sources

• World time zone map
• U.S. time zone map
• History of U.S. time zones and UTC conversion
• Canada time zone map
• Time zones for major world cities
• Official times across Canada
• The official U.S. time for the Atlantic Time Zone (no DST)

A time offset is defined by international convention as a number of hours and minutes from Coordinated Universal Time in Greenwich, England. ... UTC redirects here. ... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... -12 | -11 | -10 | -9:30 | -9 | -8 | -7 | -6 | -5 | -4 | -3:30 | -3 | -2:30 | -2 | -1 | -0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... −12 | −11 | −10 | −9:30 | −9 | −8 | −7 | −6 | −5 | −4 | −3:30 | −3 | −2:30 | −2 | −1 | −0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... -12 | -11 | -10 | -9:30 | -9 | -8 | -7 | -6 | -5 | -4 | -3:30 | -3 | -2:30 | -2 | -1 | -0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... Central European Time West Africa Time British Summer Time* Irish Summer Time* Western European Summer Time* Category: ... Eastern European Time Central Africa Time Israel Standard Time South Africa Standard Time Central European Summer Time West Africa Summer Time Category: ... -12 | -11 | -10 | -9:30 | -9 | -8 | -7 | -6 | -5 | -4 | -3:30 | -3 | -2:30 | -2 | -1 | -0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... Moscow Summer Time Category: ... UTC +5 is the timezone for : Pakistan Standard Time in Pakistan. ... UTC +6 is the timezone for : Bhutan Time Generic UTC+6 in other countries. ... UTC+7 is used in: Laos Thailand Cambodia Vietnam External links Find cities currently in UTC+7 Category: ... -12 | -11 | -10 | -9:30 | -9 | -8 | -7 | -6 | -5 | -4 | -3:30 | -3 | -2:30 | -2 | -1 | -0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... Japan Standard Time Korea Standard Time External links Find cities currently in UTC+9 Category: ... UTC+10 time zone Australia (AEST—Australian Eastern Standard Time) Australian Capital Territory**, New South Wales** (except Broken Hill, which observes South Australia time), Queensland, Tasmania** (which observes DST starting on the first weekend of October instead of the last), Victoria** Guam (Chamorro Standard Time via US Law) Federated States... as non DST time Federated States of Micronesia Kosrae, Pohnpei, and surrounding area New Caledonia Russia Kuril Islands* Magadan Oblast* Sakha Republic* (eastern portion) Solomon Islands Vanuatu as DST Australia (Australian Eastern Daylight Time) Australian Capital Territory** New South Wales** Tasmania** (where daylight saving time starts on the first weekend... Fiji Gilbert Islands, Kiribati Marshall Islands New Zealand (except Chatham Islands) Korsae, Micronesia Nauru Parts of Russia: Kamchatka Oblast Koryakia Autonomous District Chukotka Autonomous District Tuvalu Wake Island Wallis and Futuna External links Find cities currently in UTC+12 Category: ... Enderbury, Kiribati (Phoenix Islands Time) Tonga External links Find cities currently in UTC+13 Category: ... UTC+14 is the easternmost time zone currently in use anywhere in the world, and thus the first part of the planet to start each new calendar day. ... Although DST is common in Europe and North America, most of the worlds people do not use it. ... Northern hemisphere highlighted in yellow. ... southern hemisphere highlighted in yellow (Antarctica not depicted). ...

References