Portland is 9 hours behind Brussels
Best overlap: 5:00 PM to 6:00 PM in Brussels is 8:00 AM to 9:00 AM in Portland.
If you set up a recurring sync, 5:00 PM to 6:00 PM in Brussels (8:00 AM to 9:00 AM in Portland) is the natural home for it. With about 1 hour of common time, this pairing rewards planning — 5:00 PM in Brussels / 8:00 AM in Portland is the slot to defend.