| Port Harcourt Sukabumi | Western Indonesia Time | -06:00 |
| Port Harcourt Brașov | Eastern European Time | -02:00 |
| Port Harcourt Komsomolsk-on-Amur | Vladivostok Time | -09:00 |
| Port Harcourt Hakodate | Japan Time | -08:00 |
| Port Harcourt Bab Ezzouar | Central European Time | 00:00 |
| Port Harcourt Mokolo | West Africa Time | 00:00 |
| Port Harcourt Caucaia | Brasilia Time | 04:00 |
| Port Harcourt Strasbourg | Central European Time | -01:00 |
| Port Harcourt Belfast | United Kingdom Time | 00:00 |
| Port Harcourt Kashgar | China Time | -07:00 |
| Port Harcourt Ramadi | Arabian Time | -02:00 |
| Port Harcourt Ichalkaranji | India Standard Time | -04:30 |
| Port Harcourt Ibaraki | Japan Time | -08:00 |
| Port Harcourt Yao | Japan Time | -08:00 |
| Port Harcourt Herat | Afghanistan Time | -03:30 |
| Port Harcourt Guantánamo | Cuba Time | 05:00 |
| Port Harcourt Nal'chik | Moscow Time | -02:00 |
| Port Harcourt Baguio | Philippine Time | -07:00 |
| Port Harcourt Petrópolis | Brasilia Time | 04:00 |
| Port Harcourt Ar-Rayyān | Arabian Time | -02:00 |
| Port Harcourt Wiesbaden | Central European Time | -01:00 |
| Port Harcourt Montería | Colombia Time | 06:00 |
| Port Harcourt Kashan | Iran Time | -03:30 |
| Port Harcourt Ljubljana | Central European Time | -01:00 |
| Port Harcourt Kakogawa | Japan Time | -08:00 |
| Port Harcourt Tasikmalaya | Western Indonesia Time | -06:00 |
| Port Harcourt Vijayapura | India Standard Time | -04:30 |
| Port Harcourt Orlando | Eastern Time | 05:00 |
| Port Harcourt Linyi | China Time | -07:00 |
| Port Harcourt Derby | United Kingdom Time | 00:00 |
| Port Harcourt San Pedro | Philippine Time | -07:00 |
| Port Harcourt Gelsenkirchen | Central European Time | -01:00 |
| Port Harcourt Ciudad Victoria | Central Time | 06:00 |
| Port Harcourt Mogpo | Korean Time | -08:00 |
| Port Harcourt Russeifa | Eastern European Time | -02:00 |
| Port Harcourt Windhoek | Central Africa Time | -01:00 |
| Port Harcourt Tshikapa | Central Africa Time | -01:00 |
| Port Harcourt Kafr El-Dawar | Eastern European Time | -01:00 |
| Port Harcourt Tokushima | Japan Time | -08:00 |
| Port Harcourt Haifa | Israel Time | -02:00 |
| Port Harcourt Sterlitamak | Yekaterinburg Time | -04:00 |
| Port Harcourt Ha'il | Arabian Time | -02:00 |
| Port Harcourt Eixample | Central European Time | -01:00 |
| Port Harcourt Chengzhong | China Time | -07:00 |
| Port Harcourt Wuzhou | China Time | -07:00 |
| Port Harcourt Chula Vista | Pacific Time | 08:00 |
| Port Harcourt Hulan Ergi | China Time | -07:00 |
| Port Harcourt Aizawl | India Standard Time | -04:30 |
| Port Harcourt Aachen | Central European Time | -01:00 |
| Port Harcourt Sumgayit | Azerbaijan Time | -03:00 |