Dallas is 8 hours behind Bucharest
Best overlap: 4:00 PM to 6:00 PM in Bucharest is 8:00 AM to 10:00 AM in Dallas.
Your shared working hours run 4:00 PM to 6:00 PM in Bucharest (8:00 AM to 10:00 AM in Dallas). The overlap is tight at roughly 2 hours, so protect it: 4:00 PM in Bucharest / 8:00 AM in Dallas is your safest recurring slot.