Ottawa is 6 hours behind Brussels
Best overlap: 2:00 PM to 6:00 PM in Brussels is 8:00 AM to 12:00 PM in Ottawa.
Plan around 2:00 PM to 6:00 PM in Brussels, which is 8:00 AM to 12:00 PM in Ottawa, to catch everyone during office hours. With 4 hours to play with, a mid-window meeting keeps things balanced for Brussels and Ottawa alike.