Time in Argentina explained

Argentina is located at a longitude that would naturally put it in the or time zone; however, it actually uses the time zone. Argentina determines whether to change clocks in observation of daylight saving time on a year-by-year basis, and individual provinces may opt out of the federal decision. At present, Argentina does not change clocks.

The Argentine Hydrographic Service[1] maintains the official national time.

History

The first official standardization of time in Argentina took place on 31 October 1894, with establishment of as the nation's standard time.[2] From 1920 to 1969, the official time switched biannually between UTC−04:00 as standard time in winter and as daylight saving time in summer.[3] From 1974 to 1993, clocks advanced again, such that the official time switched biannually between UTC−03:00 as winter DST and as summer double DST.[4] In 1993, the national time was fixed at, called Argentina Time (ART;[5] [6] Spanish; Castilian: hora oficial argentina, HOA).In 2007 and 2008, biannual switching between UTC–3:00 (winter DST) and UTC–2:00 (summer DDST) resumed; in 2009, this was replaced again with year-round UTC–3:00 (permanent DST).[7]

IANA time zone database

In the file zone.tab of the IANA time zone database Argentina has the following zones:

  1. America/Argentina/Buenos_Aires – Buenos Aires (BA, CF)
  2. America/Argentina/Cordoba – most locations (CD, CC, CR, ER, FO, MN, SF)
  3. America/Argentina/Salta (SA, LP, NQ, RN)
  4. America/Argentina/Jujuy – Jujuy (JY)
  5. America/Argentina/Tucuman – Tucuman (TM)
  6. America/Argentina/Catamarca – Catamarca (CT), Chubut (CH)
  7. America/Argentina/La Rioja – La Rioja (LR)
  8. America/Argentina/San Juan – San Juan (SJ)
  9. America/Argentina/Mendoza – Mendoza (MZ)
  10. America/Argentina/San Luis – San Luis (SL)
  11. America/Argentina/Rio Gallegos – Santa Cruz (SC)
  12. America/Argentina/Ushuaia – Tierra del Fuego (TF)
  13. America/Argentina/Santiago_del_Estero (SE)

References

External links

Notes and References

  1. http://www.hidro.gov.ar/historia/historia_shn.asp#La%20hora%20oficial Hora Oficial
  2. Web site: 2009-10-05. HORA DE VERANO PARA LA REPUBLICA ARGENTINA. https://web.archive.org/web/20030803233204/http://www.spicasc.net/horvera.html . 2003-08-03.
  3. http://www.timeanddate.com/worldclock/timezone.html?n=51&syear=1925 Time Changes in Buenos Aires Over the Years, 1925–1949
  4. http://www.timeanddate.com/worldclock/timezone.html?n=51&syear=1970 Time Changes in Buenos Aires Over the Years, 1970–1979
  5. Web site: Argentina Time – ART Time Zone.
  6. Web site: 2008-01-26. Time zone names- Argentina Time.
  7. El Gobierno no adelantará la hora oficial el próximo domingo . Actualidad . 16 October 2009 . 17 October 2023 . Spanish . https://web.archive.org/web/20091018063808/http://www.lanacion.com.ar/nota.asp?nota_id=1187055 . 18 October 2009.