Current time in Buenos Aires

Buenos Aires sits at 58.4° west, which by geography belongs to UTC−4. Argentina has chosen UTC−3 since the late 1960s, apart from brief periods, so the sun reaches its highest point close to 1:00 PM rather than at noon. That offset, effectively permanent summer time, is one reason evenings feel long and why dinner at 9:00 or 10:00 PM is normal in the city.

Argentina last moved clocks for summer in the 2008–2009 season, and only some provinces took part. Since then the whole country has stayed on UTC−3. Buenos Aires therefore always matches São Paulo and Montevideo.

At 34.6° south, Buenos Aires gets about 14 hours 25 minutes of daylight in late December, with sunrise near 5:40 AM and sunset after 8:05 PM. In June the sun does not rise until about 8:00 AM and sets near 5:50 PM, a day of about 9 hours 50 minutes. The late winter sunrise is a direct result of the clock running ahead of the sun.

Buenos Aires is two hours ahead of New York in the northern winter and one hour ahead from March to November. Madrid is four hours ahead during European winter and five during European summer, which makes the Buenos Aires morning the overlap for Spanish-speaking teams. Tokyo is 12 hours ahead all year, so Buenos Aires and Tokyo sit on opposite sides of the clock face. The ART to EST page lists each hour against New York, and the world clock shows Buenos Aires beside other cities.