| Portsmouth Blantyre | United Kingdom Time | 00:00 |
| Portsmouth Segamat District | Malaysia Time | -07:00 |
| Portsmouth Umm Al Arais | Central European Time | 00:00 |
| Portsmouth Polruan | United Kingdom Time | 00:00 |
| Portsmouth Little River | New Zealand Time | -11:00 |
| Portsmouth Namur | Central European Time | -01:00 |
| Portsmouth Satna | India Standard Time | -04:30 |
| Portsmouth Doylestown | Eastern Time | 05:00 |
| Portsmouth Bled | Central European Time | -01:00 |
| Portsmouth Segur de Calafell | Central European Time | -01:00 |
| Portsmouth Unawatuna | India Standard Time | -04:30 |
| Portsmouth Polšnik | Central European Time | -01:00 |
| Portsmouth Little River | Eastern Time | 05:00 |
| Portsmouth Mojácar | Central European Time | -01:00 |
| Portsmouth Sault Ste. Marie | Eastern Time | 05:00 |
| Portsmouth Dozza | Central European Time | -01:00 |
| Portsmouth Blaichach | Central European Time | -01:00 |
| Portsmouth Seixal | Western European Time | 00:00 |
| Portsmouth Underwood | Eastern Australia Time | -09:00 |
| Portsmouth Pont-Sainte-Marie | Central European Time | -01:00 |
| Portsmouth Littlehampton | Central Australia Time | -08:30 |
| Portsmouth Möhlin | Central European Time | -01:00 |
| Portsmouth Sausalito | Pacific Time | 08:00 |
| Portsmouth Dubai | Gulf Standard Time | -03:00 |
| Portsmouth Bhalawani | India Standard Time | -04:30 |
| Portsmouth San Phi Suea | Indochina Time | -06:00 |
| Portsmouth Uintah | Mountain Time | 07:00 |
| Portsmouth Ponkunnam | India Standard Time | -04:30 |
| Portsmouth Littlehempston | United Kingdom Time | 00:00 |
| Portsmouth Mohol | India Standard Time | -04:30 |
| Portsmouth Savar Kundla | India Standard Time | -04:30 |
| Portsmouth Dubaiya | India Standard Time | -04:30 |
| Portsmouth Blair | Central Time | 06:00 |
| Portsmouth San Rafael | Central European Time | -01:00 |
| Portsmouth Ujire | India Standard Time | -04:30 |
| Portsmouth Ponnamveli | India Standard Time | -04:30 |
| Portsmouth Little Silver | Eastern Time | 05:00 |
| Portsmouth Nala Sopara | India Standard Time | -04:30 |
| Portsmouth Rossett | United Kingdom Time | 00:00 |
| Portsmouth Dublin | Ireland Time | 00:00 |
| Portsmouth Blair Athol | Central Australia Time | -08:30 |
| Portsmouth San Ramon | Central Time | 07:00 |
| Portsmouth Tierra Blanca | Central Time | 06:00 |
| Portsmouth Ponca | Central Time | 06:00 |
| Portsmouth Littleborough | United Kingdom Time | 00:00 |
| Portsmouth Nové Město na Moravě | Central European Time | -01:00 |
| Portsmouth Ross-on-Wye | United Kingdom Time | 00:00 |
| Portsmouth Dublin | Ireland Time | 00:00 |
| Portsmouth Bevier | Central Time | 06:00 |
| Portsmouth San Pedro | Central Time | 07:00 |