| Portsmouth Jamnagar | India Standard Time | -05:30 |
| Portsmouth Sacramento | Pacific Time | 08:00 |
| Portsmouth Aracaju | Brasilia Time | 03:00 |
| Portsmouth Port Sudan | Central Africa Time | -02:00 |
| Portsmouth Santa Fe | Argentina Time | 03:00 |
| Portsmouth San Pedro Sula | Central Time | 06:00 |
| Portsmouth Suez | Eastern European Time | -02:00 |
| Portsmouth Dresden | Central European Time | -01:00 |
| Portsmouth Tomsk | Tomsk Time | -07:00 |
| Portsmouth Masina | West Africa Time | -01:00 |
| Portsmouth Saharanpur | India Standard Time | -05:30 |
| Portsmouth Gulbarga | India Standard Time | -05:30 |
| Portsmouth Bhātpāra | India Standard Time | -05:30 |
| Portsmouth Najaf | Arabian Time | -03:00 |
| Portsmouth Feira de Santana | Brasilia Time | 03:00 |
| Portsmouth Shah Alam | Malaysia Time | -08:00 |
| Portsmouth Mariupol' | Eastern European Time | -02:00 |
| Portsmouth Himeji | Japan Time | -09:00 |
| Portsmouth Tuxtla Gutiérrez | Central Time | 06:00 |
| Portsmouth Gomel | Moscow Time | -03:00 |
| Portsmouth Okene | West Africa Time | -01:00 |
| Portsmouth Uijeongbu-si | Korean Time | -09:00 |
| Portsmouth East London | South Africa Standard Time | -02:00 |
| Portsmouth Yazd | Iran Time | -03:30 |
| Portsmouth Hargeisa | East Africa Time | -03:00 |
| Portsmouth Siālkot | Pakistan Time | -05:00 |
| Portsmouth Kemerovo | Novokuznetsk Time | -07:00 |
| Portsmouth Yichang | China Time | -08:00 |
| Portsmouth Hwaseong-si | Korean Time | -09:00 |
| Portsmouth Kansas City | Central Time | 06:00 |
| Portsmouth Cuautitlán Izcalli | Central Time | 06:00 |
| Portsmouth Yinchuan | China Time | -08:00 |
| Portsmouth Skopje | Central European Time | -01:00 |
| Portsmouth Vereeniging | South Africa Standard Time | -02:00 |
| Portsmouth The Hague | Central European Time | -01:00 |
| Portsmouth Long Beach | Pacific Time | 08:00 |
| Portsmouth Mixco | Central Time | 06:00 |
| Portsmouth Lyon | Central European Time | -01:00 |
| Portsmouth Londrina | Brasilia Time | 03:00 |
| Portsmouth Mesa | Mountain Time | 07:00 |
| Portsmouth Jiaojiangcun | China Time | -08:00 |
| Portsmouth Matsudo | Japan Time | -09:00 |
| Portsmouth Juiz de Fora | Brasilia Time | 03:00 |
| Portsmouth Nishinomiya | Japan Time | -09:00 |
| Portsmouth Tula | Moscow Time | -03:00 |
| Portsmouth Borough of Staten Island | Eastern Time | 05:00 |
| Portsmouth Kawaguchi | Japan Time | -09:00 |
| Portsmouth Zunyi | China Time | -08:00 |
| Portsmouth Jiaxing | China Time | -08:00 |
| Portsmouth Belford Roxo | Brasilia Time | 03:00 |