Reykjavik is 8 hours ahead of Portland
Best overlap: 8:00 AM to 10:00 AM in Portland is 4:00 PM to 6:00 PM in Reykjavik.
The sweet spot is 8:00 AM to 10:00 AM Portland time, matching 4:00 PM to 6:00 PM in Reykjavik. The window is short at 2 hours, so keep meetings tight and anchored to 8:00 AM in Portland (4:00 PM in Reykjavik). Because only Portland changes its clocks, the overlap above isn't fixed; expect a one-hour shift when Portland enters or leaves daylight saving.