New York is exactly 1 hour ahead of Dallas year-round. When it's 12:00 PM in Dallas, it's 1:00 PM in New York. Both cities observe DST on the same schedule.
Dallas uses Central Time (CST/CDT) while New York uses Eastern Time (EST/EDT). The 1-hour difference remains constant throughout the year.
Any time works! 9:00 AM - 5:00 PM Dallas corresponds to 10:00 AM - 6:00 PM New York. Complete business overlap with just 1-hour shift.
Dallas/Fort Worth is America's 4th largest metro area and a major corporate hub (AT&T, Southwest, American Airlines). DFW airport is a major hub with frequent NYC flights.