Dallas is 7 hours behind Prague
Best overlap: 3:00 PM to 6:00 PM in Prague is 8:00 AM to 11:00 AM in Dallas.
Plan around 3:00 PM to 6:00 PM in Prague, which is 8:00 AM to 11:00 AM in Dallas, to catch everyone during office hours. Dallas is 7 hours behind Prague, so you've got a workable 3-hour overlap — ideal for a standing meeting around 3:00 PM in Prague (8:00 AM in Dallas).