New York is typically 5 hours behind Lisbon. When it's 5:00 PM in Lisbon, it's 12:00 PM in New York. Both cities observe DST on similar schedules.
During most of the year, the difference is 5 hours. During the brief DST transition weeks (early March and late October/early November), it can be 4 or 6 hours.
Optimal meeting window: 9:00 AM - 12:00 PM New York time (2:00 PM - 5:00 PM Lisbon). Morning New York catches afternoon Lisbon.
Portugal is a growing tech hub with Lisbon's Web Summit attracting thousands of Americans annually. TAP Air Portugal operates multiple daily flights from New York.