Bucharest is 1 hour ahead of Prague
Best overlap: 8:00 AM to 5:00 PM in Prague is 9:00 AM to 6:00 PM in Bucharest.
Book within 8:00 AM to 5:00 PM Prague time (9:00 AM to 6:00 PM in Bucharest) and both teams will be at work. That's a roomy 9 hours of common time each day, so finding a slot that suits everyone is rarely a problem.