Argentina is located at a longitude that would naturally put in the UTC-4 UT time zone, but it actually uses the UTC-3 time zone. Argentina determines whether to observe daylight saving time on a year-by-year basis, and individual provinces may opt out of the federal decision. At present, Argentina does not observe daylight saving time.[1] Historically, some or all of Argentina has observed daylight saving time during austral summer 1989-1990 through austral summer 1992-1993, and again in 1999-2000, 2007-2008, and 2008-2009[2].
As of 15 March 2009, San Luis Province has its own time zone, which is UTC-4. This effectively makes Argentina split into two different time zones.[3]
The first official standardization took place on 1894-09-25[4].
The official time switched between UTC-4 and UTC-3 from 1920 to 1969[citation needed], and then between UTC-3 and UTC-2 from 1974 to 1993[citation needed]. On 1993-03-07 it was fixed at UTC-3, called Argentina Time (ART)[citation needed] [5][unreliable source?].
In the tz-database Argentina has the following zones:
- America/Argentina/Buenos_Aires - Buenos Aires (BA, CF)
- America/Argentina/Cordoba - most locations (CB, CC, CN, ER, FM, MN, SE, SF)
- America/Argentina/Salta (SA, LP, NQ, RN)
- America/Argentina/Jujuy - Jujuy (JY)
- America/Argentina/Tucuman - Tucuman (TM)
- America/Argentina/Catamarca - Catamarca (CT), Chubut (CH)
- America/Argentina/La_Rioja - La Rioja (LR)
- America/Argentina/San_Juan - San Juan (SJ)
- America/Argentina/Mendoza - Mendoza (MZ)
- America/Argentina/San_Luis - San Luis (SL)
- America/Argentina/Rio_Gallegos - Santa Cruz (SC)
- America/Argentina/Ushuaia - Tierra del Fuego (TF)
References
- ^ "El Gobierno no adelantará la hora oficial el próximo domingo". http://www.lanacion.com.ar/nota.asp?nota_id=1187055. Retrieved 2009-10-29.
- ^ Planet Ark : Argentine Congress OKs Time Change to Save Energy
- ^ "ESTABLECE HUSO HORARIO PARA LA PROVINCIA DE SAN LUIS". http://ministerios.sanluis.gov.ar/res/media/pdf/18459.doc. Retrieved 2009-10-08.
- ^ "HORA DE VERANO PARA LA REPUBLICA ARGENTINA". http://web.archive.org/web/20030803233204/http://www.spicasc.net/horvera.html. Retrieved 2009-10-05.
- ^ "Time zone names- Argentina Time". http://www.worldtimezone.com/wtz-names/wtz-art.html. Retrieved 2008-01-26.
- tz database - The tz database contains an extensive history of time zone and daylight saving time changes, with references to official sources for changes to time zones, for Argentina and the rest of the world.
External links
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