| Portland Sacramento | Pacific Time | 00:00 |
| Portland Aracaju | Brasilia Time | -05:00 |
| Portland Port Sudan | Central Africa Time | -10:00 |
| Portland Santa Fe | Argentina Time | -05:00 |
| Portland San Pedro Sula | Central Time | -02:00 |
| Portland Suez | Eastern European Time | -10:00 |
| Portland Dresden | Central European Time | -09:00 |
| Portland Tomsk | Tomsk Time | -15:00 |
| Portland Masina | West Africa Time | -09:00 |
| Portland Saharanpur | India Standard Time | -13:30 |
| Portland Gulbarga | India Standard Time | -13:30 |
| Portland Bhātpāra | India Standard Time | -13:30 |
| Portland Najaf | Arabian Time | -11:00 |
| Portland Feira de Santana | Brasilia Time | -05:00 |
| Portland Shah Alam | Malaysia Time | -16:00 |
| Portland Mariupol' | Eastern European Time | -10:00 |
| Portland Himeji | Japan Time | -17:00 |
| Portland Tuxtla Gutiérrez | Central Time | -02:00 |
| Portland Gomel | Moscow Time | -11:00 |
| Portland Okene | West Africa Time | -09:00 |
| Portland Uijeongbu-si | Korean Time | -17:00 |
| Portland East London | South Africa Standard Time | -10:00 |
| Portland Yazd | Iran Time | -11:30 |
| Portland Hargeisa | East Africa Time | -11:00 |
| Portland Siālkot | Pakistan Time | -13:00 |
| Portland Kemerovo | Novokuznetsk Time | -15:00 |
| Portland Yichang | China Time | -16:00 |
| Portland Hwaseong-si | Korean Time | -17:00 |
| Portland Kansas City | Central Time | -02:00 |
| Portland Cuautitlán Izcalli | Central Time | -02:00 |
| Portland Yinchuan | China Time | -16:00 |
| Portland Skopje | Central European Time | -09:00 |
| Portland Vereeniging | South Africa Standard Time | -10:00 |
| Portland The Hague | Central European Time | -09:00 |
| Portland Long Beach | Pacific Time | 00:00 |
| Portland Mixco | Central Time | -02:00 |
| Portland Lyon | Central European Time | -09:00 |
| Portland Londrina | Brasilia Time | -05:00 |
| Portland Mesa | Mountain Time | -01:00 |
| Portland Jiaojiangcun | China Time | -16:00 |
| Portland Matsudo | Japan Time | -17:00 |
| Portland Juiz de Fora | Brasilia Time | -05:00 |
| Portland Nishinomiya | Japan Time | -17:00 |
| Portland Tula | Moscow Time | -11:00 |
| Portland Borough of Staten Island | Eastern Time | -03:00 |
| Portland Kawaguchi | Japan Time | -17:00 |
| Portland Zunyi | China Time | -16:00 |
| Portland Jiaxing | China Time | -16:00 |
| Portland Belford Roxo | Brasilia Time | -05:00 |
| Portland Jammu | India Standard Time | -13:30 |