Ottawa is 7 hours behind Bucharest
Best overlap: 3:00 PM to 6:00 PM in Bucharest is 8:00 AM to 11:00 AM in Ottawa.
Target 3:00 PM to 6:00 PM in Bucharest, which lands at 8:00 AM to 11:00 AM for the Ottawa side. Ottawa is 7 hours behind Bucharest, so the practical overlap is about 3 hours — generous enough for meetings, tight enough to be worth booking ahead.