| Oulu Goiânia | Brasilia Time | 06:00 |
| Oulu Guarulhos | Brasilia Time | 06:00 |
| Oulu Prague | Central European Time | 01:00 |
| Oulu Varanasi | India Standard Time | -02:30 |
| Oulu Copenhagen | Central European Time | 01:00 |
| Oulu Sofia | Eastern European Time | 00:00 |
| Oulu Tripoli | Eastern European Time | 01:00 |
| Oulu Port Harcourt | West Africa Time | 02:00 |
| Oulu Hiroshima | Japan Time | -06:00 |
| Oulu Lijiang | China Time | -05:00 |
| Oulu Dubai | Gulf Standard Time | -01:00 |
| Oulu Samara | Samara Time | -01:00 |
| Oulu Omsk | Omsk Time | -03:00 |
| Oulu Benin City | West Africa Time | 02:00 |
| Oulu Monterrey | Central Time | 08:00 |
| Oulu Malingao | Philippine Time | -05:00 |
| Oulu Baku | Azerbaijan Time | -01:00 |
| Oulu Leon | Central Time | 08:00 |
| Oulu Maiduguri | West Africa Time | 02:00 |
| Oulu Kazan | Moscow Time | 00:00 |
| Oulu Yerevan | Armenia Time | -01:00 |
| Oulu Amritsar | India Standard Time | -02:30 |
| Oulu Ouagadougou | Greenwich Mean Time | 03:00 |
| Oulu Yono | Japan Time | -06:00 |
| Oulu Rostov-on-Don | Moscow Time | 00:00 |
| Oulu Allahabad | India Standard Time | -02:30 |
| Oulu Goyang-si | Korean Time | -06:00 |
| Oulu Gaziantep | Turkey Time | 00:00 |
| Oulu Visakhapatnam | India Standard Time | -02:30 |
| Oulu Sendai | Japan Time | -06:00 |
| Oulu Chelyabinsk | Yekaterinburg Time | -02:00 |
| Oulu Datong | China Time | -05:00 |
| Oulu Tbilisi | Georgia Time | -01:00 |
| Oulu Changshu City | China Time | -05:00 |
| Oulu Taichung | Taipei Time | -05:00 |
| Oulu Theni | India Standard Time | -02:30 |
| Oulu Xianyang | China Time | -05:00 |
| Oulu Ufa | Yekaterinburg Time | -02:00 |
| Oulu Dnepropetrovsk | Eastern European Time | 00:00 |
| Oulu Seongnam-si | Korean Time | -06:00 |
| Oulu Campinas | Brasilia Time | 06:00 |
| Oulu Jabalpur | India Standard Time | -02:30 |
| Oulu Howrah | India Standard Time | -02:30 |
| Oulu Huainan | China Time | -05:00 |
| Oulu San Jose | Pacific Time | 10:00 |
| Oulu Donetsk | Eastern European Time | 00:00 |
| Oulu Dublin | Ireland Time | 02:00 |
| Oulu Calgary | Mountain Time | 09:00 |
| Oulu Brussels | Central European Time | 01:00 |
| Oulu Aurangabad | India Standard Time | -02:30 |