New York is exactly 6 hours behind Brussels year-round. When it's 6:00 PM in Brussels, it's 12:00 PM (noon) in New York. Both cities observe daylight saving time on similar schedules.
The 6-hour difference remains relatively constant throughout the year, with brief variations during DST transition weeks.
Optimal meeting window: 9:00 AM - 12:00 PM New York time (3:00 PM - 6:00 PM Brussels). Morning New York catches afternoon Brussels before end of business.
Brussels hosts the headquarters of NATO and the EU. US government officials and diplomats frequently coordinate with Brussels counterparts. Direct flights from JFK take about 8 hours.