| Port Harcourt Sumy | Eastern European Time | -01:00 |
| Port Harcourt Fukushima | Japan Time | -08:00 |
| Port Harcourt Galați | Eastern European Time | -01:00 |
| Port Harcourt Blumenau | Brasilia Time | 04:00 |
| Port Harcourt Noida | India Standard Time | -04:30 |
| Port Harcourt Greater Noida | India Standard Time | -04:30 |
| Port Harcourt Foz do Iguaçu | Brasilia Time | 04:00 |
| Port Harcourt Al Hofuf | Arabian Time | -02:00 |
| Port Harcourt Kakinada | India Standard Time | -04:30 |
| Port Harcourt Panipat | India Standard Time | -04:30 |
| Port Harcourt Semey | East Kazakhstan Time | -05:00 |
| Port Harcourt Makurdi | West Africa Time | 00:00 |
| Port Harcourt Wollongong | Eastern Australia Time | -10:00 |
| Port Harcourt Ponta Grossa | Brasilia Time | 04:00 |
| Port Harcourt Minna | West Africa Time | 00:00 |
| Port Harcourt Białystok | Central European Time | 00:00 |
| Port Harcourt Mbeya | East Africa Time | -02:00 |
| Port Harcourt Nonthaburi | Indochina Time | -06:00 |
| Port Harcourt Gumi-si | Korean Time | -08:00 |
| Port Harcourt Tambov | Moscow Time | -02:00 |
| Port Harcourt Catania | Central European Time | 00:00 |
| Port Harcourt Al Mubarraz | Arabian Time | -02:00 |
| Port Harcourt Bafoussam | West Africa Time | 00:00 |
| Port Harcourt Kasur | Pakistan Time | -04:00 |
| Port Harcourt Utrecht | Central European Time | 00:00 |
| Port Harcourt Xiuying | China Time | -07:00 |
| Port Harcourt Paulista | Brasilia Time | 04:00 |
| Port Harcourt Hillah | Arabian Time | -02:00 |
| Port Harcourt Limeira | Brasilia Time | 04:00 |
| Port Harcourt Parbhani | India Standard Time | -04:30 |
| Port Harcourt Victoria | Pacific Time | 08:00 |
| Port Harcourt Beihai | China Time | -07:00 |
| Port Harcourt Huizhou | China Time | -07:00 |
| Port Harcourt Zeytinburnu | Turkey Time | -02:00 |
| Port Harcourt Tsuen Wan | Hong Kong Time | -07:00 |
| Port Harcourt Ironville | Eastern Time | 05:00 |
| Port Harcourt Meads | Eastern Time | 05:00 |
| Port Harcourt Sétif | Central European Time | 00:00 |
| Port Harcourt Safi | Western European Time | 01:00 |
| Port Harcourt Sinŭiju | Pyongyang Time | -08:00 |
| Port Harcourt Huế | Indochina Time | -06:00 |
| Port Harcourt Darbhanga | India Standard Time | -04:30 |
| Port Harcourt Marienthal | Central European Time | 00:00 |
| Port Harcourt Adapazari | Turkey Time | -02:00 |
| Port Harcourt Sultanbeyli | Turkey Time | -02:00 |
| Port Harcourt Henderson | Pacific Time | 08:00 |
| Port Harcourt Greensboro | Eastern Time | 05:00 |
| Port Harcourt Viamão | Brasilia Time | 04:00 |
| Port Harcourt Zagazig | Eastern European Time | -01:00 |
| Port Harcourt Saint Paul | Central Time | 06:00 |