New York is exactly 6 hours behind Madrid year-round. When it's 8:00 PM in Madrid, it's 2:00 PM in New York. Both cities observe daylight saving time, and they switch on similar schedules.
Madrid uses Central European Time (CET/CEST) while New York uses Eastern Time (EST/EDT). The 6-hour difference remains relatively constant, though there can be brief 1-hour variations during the DST transition weeks.
Optimal meeting window: 9:00 AM - 12:00 PM New York time (3:00 PM - 6:00 PM Madrid). Morning New York catches afternoon Madrid before end of business day.
New York has a large Spanish-speaking population, and many US companies have European headquarters in Madrid. Direct flights from JFK to Madrid take about 7 hours.