Current time in Buenos Aires

Argentina · UTC-3

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America/Argentina/Buenos_Aires

UTC offset

UTC-3

Daylight Saving

No — not observed

Time zone ID

America/Argentina/Buenos_Aires

Business hours

9:00 AM – 6:00 PM ART (Monday–Friday)

About Buenos Aires's time zone

Buenos Aires follows Argentina Time (ART, UTC-3) year-round. Argentina abolished daylight saving time in 2008 and has remained on UTC-3 since. This makes Buenos Aires one of the world's major cities furthest west while still using a relatively eastern time — it's geographically aligned with Uruguay and southern Brazil. Buenos Aires is 3 hours behind London in winter and 8 hours behind Paris.

Best time to call Buenos Aires

Calling from	Recommended window
London	12:00 PM – 9:00 PM GMT
New York	10:00 AM – 7:00 PM ET
Madrid	2:00 PM – 11:00 PM CET
São Paulo	9:00 AM – 6:00 PM BRT

Did you know? Argentina went through a chaotic period of time zone changes between 1999 and 2008, switching between UTC-3 and UTC-2 multiple times. In 2000, Argentina adopted permanent daylight saving time (UTC-2) to save energy, then abandoned it in 2004, tried again, and finally settled on permanent UTC-3 in 2008. These changes caused significant confusion for international business and software systems.

Cities in the same time zone