The difference varies between 1-2 hours depending on DST. Chile and the US observe DST on opposite schedules (Chile's summer is US winter). This creates varying time differences throughout the year.
When both are on standard time or both on DST, the difference is typically 2 hours. During transition periods, it can be 1 or 3 hours.
Excellent overlap! Business hours align well. 9:00 AM - 5:00 PM New York typically corresponds to 10:00 AM - 6:00 PM or 11:00 AM - 7:00 PM Santiago.
Chile has the most stable economy in South America. Major US mining companies operate copper mines in Chile, and the countries have a free trade agreement.