Dallas is 7 hours behind Budapest
Best overlap: 3:00 PM to 6:00 PM in Budapest is 8:00 AM to 11:00 AM in Dallas.
Keep meetings inside 3:00 PM to 6:00 PM in Budapest — that maps to 8:00 AM to 11:00 AM in Dallas. Dallas is 7 hours behind Budapest, leaving about 3 hours of daily overlap — enough for most meetings if you don't leave them too late in the day.