Madrid is 4 hours ahead of Buenos Aires during standard time, and 5 hours ahead during daylight saving time. Buenos Aires uses Argentina Time (ART, UTC-3) while Madrid uses Central European Time (CET/CEST). When it's 9:00 AM in Buenos Aires, it's 1:00 PM or 2:00 PM in Madrid.
Argentina does not currently observe daylight saving time, while Spain does, so the difference varies between 4-5 hours throughout the year.
Best calling time: 5:00 AM - 1:00 PM Buenos Aires time. This corresponds to 9:00 AM - 5:00 PM in Madrid, covering Spanish business hours. Early morning calls from Buenos Aires may be necessary.
Buenos Aires and Madrid share deep cultural and linguistic ties. Argentina has the largest Spanish diaspora population. Direct flights connect the cities in about 12 hours.