Kuala Lumpur is 16 hours ahead of Portland
Best overlap: 4:00 PM to 6:00 PM in Portland is 8:00 AM to 10:00 AM in Kuala Lumpur.
The overlap falls at 4:00 PM to 6:00 PM in Portland, or 8:00 AM to 10:00 AM if you're in Kuala Lumpur. The window is short at 2 hours, so keep meetings tight and anchored to 4:00 PM in Portland (8:00 AM in Kuala Lumpur). The overlap spans the date line; in practical terms, Kuala Lumpur is on the next day compared to Portland. Because only Portland changes its clocks, the overlap above isn't fixed; expect a one-hour shift when Portland enters or leaves daylight saving.