Buenos Aires is 3 hours ahead of Austin during US winter (CST), and 2 hours ahead during US summer (CDT). When it's 9:00 AM in Austin, it's 11:00 AM or 12:00 PM in Buenos Aires.
Argentina uses ART (UTC-3) year-round and doesn't observe DST.
Business hours overlap significantly! 9:00 AM - 5:00 PM Austin corresponds to 11:00 AM - 8:00 PM Buenos Aires. The manageable time difference makes coordination convenient.
American and United operate flights connecting Austin to Buenos Aires via connecting hubs.