Best overlap: 3:00 PM to 6:00 PM in Portland is 8:00 AM to 11:00 AM in Tokyo.
The sweet spot is 3:00 PM to 6:00 PM Portland time, matching 8:00 AM to 11:00 AM in Tokyo. You've got a decent 3-hour window. Set a recurring time near 3:00 PM in Portland (8:00 AM in Tokyo) and stick to it. The two cities aren't on the same date during this window — Tokyo runs the next day from Portland. The window above shifts seasonally: Portland keeps daylight saving while Tokyo ignores it.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Portland America/Los Angeles | ||||||||||||||||||||||||
Tokyo Asia/Tokyo |
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