| Port Harcourt Luanda | West Africa Time | 00:00 |
| Port Harcourt Quezon City | Philippine Time | -07:00 |
| Port Harcourt Addis Ababa | East Africa Time | -02:00 |
| Port Harcourt Nairobi | East Africa Time | -02:00 |
| Port Harcourt Chicago | Central Time | 06:00 |
| Port Harcourt Salvador | Brasilia Time | 04:00 |
| Port Harcourt Jaipur | India Standard Time | -04:30 |
| Port Harcourt Dar es Salaam | East Africa Time | -02:00 |
| Port Harcourt Lanzhou | China Time | -07:00 |
| Port Harcourt Incheon | Korean Time | -08:00 |
| Port Harcourt Yunfu | China Time | -07:00 |
| Port Harcourt Basrah | Arabian Time | -02:00 |
| Port Harcourt Navi Mumbai | India Standard Time | -04:30 |
| Port Harcourt Toronto | Eastern Time | 05:00 |
| Port Harcourt Osaka | Japan Time | -08:00 |
| Port Harcourt Mogadishu | East Africa Time | -02:00 |
| Port Harcourt Daegu | Korean Time | -08:00 |
| Port Harcourt Faisalabad | Pakistan Time | -04:00 |
| Port Harcourt Izmir | Turkey Time | -02:00 |
| Port Harcourt Dakar | Greenwich Mean Time | 01:00 |
| Port Harcourt Lucknow | India Standard Time | -04:30 |
| Port Harcourt Giza | Eastern European Time | -01:00 |
| Port Harcourt Fortaleza | Brasilia Time | 04:00 |
| Port Harcourt Cali | Colombia Time | 06:00 |
| Port Harcourt Surabaya | Western Indonesia Time | -06:00 |
| Port Harcourt Belo Horizonte | Brasilia Time | 04:00 |
| Port Harcourt Nanchang | China Time | -07:00 |
| Port Harcourt Rome | Central European Time | -01:00 |
| Port Harcourt Mashhad | Iran Time | -03:30 |
| Port Harcourt Borough of Brooklyn | Eastern Time | 05:00 |
| Port Harcourt Houston | Central Time | 06:00 |
| Port Harcourt Queens | Eastern Time | 05:00 |
| Port Harcourt Nagpur | India Standard Time | -04:30 |
| Port Harcourt Maracaibo | Venezuela Time | 05:00 |
| Port Harcourt Brasília | Brasilia Time | 04:00 |
| Port Harcourt Santo Domingo | Atlantic Time | 05:00 |
| Port Harcourt Nagoya | Japan Time | -08:00 |
| Port Harcourt Brisbane | Eastern Australia Time | -09:00 |
| Port Harcourt Havana | Cuba Time | 05:00 |
| Port Harcourt Paris | Central European Time | -01:00 |
| Port Harcourt Al Mawşil al Jadīdah | Arabian Time | -02:00 |
| Port Harcourt Johannesburg | South Africa Standard Time | -01:00 |
| Port Harcourt Kowloon | Hong Kong Time | -07:00 |
| Port Harcourt Al Başrah al Qadīmah | Arabian Time | -02:00 |
| Port Harcourt Almaty | East Kazakhstan Time | -05:00 |
| Port Harcourt Medellin | Colombia Time | 06:00 |
| Port Harcourt Tashkent | Uzbekistan Time | -04:00 |
| Port Harcourt Algiers | Central European Time | 00:00 |
| Port Harcourt Khartoum | Central Africa Time | -01:00 |
| Port Harcourt Accra | Greenwich Mean Time | 01:00 |