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America/Argentina/Buenos_Aires

America/Argentina/Buenos_Aires is the IANA time zone for Buenos Aires (BA, CF) in Argentina.

UTC−03:00

Tue, Sep 29 UTC−3 ART

Offsets and daylight saving time

Standard offset
UTC−03:00
Rule
No daylight saving time: UTC−3 all year.

No clock changes are scheduled in the next three years.

Names

Generic name
Argentina Standard Time
Abbreviation
ART
Long name
Argentina Standard Time
Aliases
America/Buenos_Aires (old ids that resolve to America/Argentina/Buenos_Aires)

Use it in code

// JavaScript
new Intl.DateTimeFormat('en-US', { timeZone: 'America/Argentina/Buenos_Aires' })

# Python
from zoneinfo import ZoneInfo
ZoneInfo('America/Argentina/Buenos_Aires')

-- PostgreSQL
SELECT now() AT TIME ZONE 'America/Argentina/Buenos_Aires';

Cities in America/Argentina/Buenos_Aires

Also in this zone: Mar del Plata, Bahía Blanca, Merlo, Quilmes, José C. Paz, La Plata, Berazategui, San Miguel, San Nicolás de los Arroyos, Tandil, Ezeiza, Lomas de Zamora, Castelar, San Justo.

Offset history since 1970

  • 1970–1973: UTC−3
  • 1974: UTC−3 and UTC−2 during the year
  • 1975–1987: UTC−3
  • 1988–1993: UTC−3 and UTC−2 each year
  • 1994–2006: UTC−3
  • 2007–2009: UTC−3 and UTC−2 each year
  • 2010–2026: UTC−3

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