| Oulu Jamnagar | India Standard Time | -02:30 |
| Oulu Sacramento | Pacific Time | 10:00 |
| Oulu Aracaju | Brasilia Time | 06:00 |
| Oulu Port Sudan | Central Africa Time | 01:00 |
| Oulu Santa Fe | Argentina Time | 06:00 |
| Oulu San Pedro Sula | Central Time | 09:00 |
| Oulu Suez | Eastern European Time | 01:00 |
| Oulu Dresden | Central European Time | 01:00 |
| Oulu Tomsk | Tomsk Time | -04:00 |
| Oulu Masina | West Africa Time | 02:00 |
| Oulu Saharanpur | India Standard Time | -02:30 |
| Oulu Gulbarga | India Standard Time | -02:30 |
| Oulu Bhātpāra | India Standard Time | -02:30 |
| Oulu Najaf | Arabian Time | 00:00 |
| Oulu Feira de Santana | Brasilia Time | 06:00 |
| Oulu Shah Alam | Malaysia Time | -05:00 |
| Oulu Mariupol' | Eastern European Time | 00:00 |
| Oulu Himeji | Japan Time | -06:00 |
| Oulu Tuxtla Gutiérrez | Central Time | 08:00 |
| Oulu Gomel | Moscow Time | 00:00 |
| Oulu Okene | West Africa Time | 02:00 |
| Oulu Uijeongbu-si | Korean Time | -06:00 |
| Oulu East London | South Africa Standard Time | 01:00 |
| Oulu Yazd | Iran Time | -01:30 |
| Oulu Hargeisa | East Africa Time | 00:00 |
| Oulu Siālkot | Pakistan Time | -02:00 |
| Oulu Kemerovo | Novokuznetsk Time | -04:00 |
| Oulu Yichang | China Time | -05:00 |
| Oulu Hwaseong-si | Korean Time | -06:00 |
| Oulu Kansas City | Central Time | 08:00 |
| Oulu Cuautitlán Izcalli | Central Time | 08:00 |
| Oulu Yinchuan | China Time | -05:00 |
| Oulu Skopje | Central European Time | 01:00 |
| Oulu Vereeniging | South Africa Standard Time | 01:00 |
| Oulu The Hague | Central European Time | 01:00 |
| Oulu Long Beach | Pacific Time | 10:00 |
| Oulu Mixco | Central Time | 09:00 |
| Oulu Lyon | Central European Time | 01:00 |
| Oulu Londrina | Brasilia Time | 06:00 |
| Oulu Mesa | Mountain Time | 10:00 |
| Oulu Jiaojiangcun | China Time | -05:00 |
| Oulu Matsudo | Japan Time | -06:00 |
| Oulu Juiz de Fora | Brasilia Time | 06:00 |
| Oulu Nishinomiya | Japan Time | -06:00 |
| Oulu Tula | Moscow Time | 00:00 |
| Oulu Borough of Staten Island | Eastern Time | 07:00 |
| Oulu Kawaguchi | Japan Time | -06:00 |
| Oulu Zunyi | China Time | -05:00 |
| Oulu Jiaxing | China Time | -05:00 |
| Oulu Belford Roxo | Brasilia Time | 06:00 |