| Portsmouth Vostochny District | Moscow Time | -03:00 |
| Portsmouth Luserna San Giovanni | Central European Time | -01:00 |
| Portsmouth Voorhees Township | Eastern Time | 05:00 |
| Portsmouth Ruidoso | Mountain Time | 07:00 |
| Portsmouth Voroneț | Eastern European Time | -02:00 |
| Portsmouth Luquillo | Atlantic Time | 04:00 |
| Portsmouth Vosselaar | Central European Time | -01:00 |
| Portsmouth Ruinen | Central European Time | -01:00 |
| Portsmouth Volterra | Central European Time | -01:00 |
| Portsmouth Lehighton | Eastern Time | 05:00 |
| Portsmouth Volcano | Hawaii-Aleutian Time | 10:00 |
| Portsmouth Sativali | India Standard Time | -05:30 |
| Portsmouth Vitthalapur | India Standard Time | -05:30 |
| Portsmouth Lehragaga | India Standard Time | -05:30 |
| Portsmouth Union Gap | Pacific Time | 08:00 |
| Portsmouth Sassenberg | Central European Time | -01:00 |
| Portsmouth Visakhapatnam | India Standard Time | -05:30 |
| Portsmouth Lydney | United Kingdom Time | 00:00 |
| Portsmouth Visakhapatnam Port | India Standard Time | -05:30 |
| Portsmouth Sassnitz | Central European Time | -01:00 |
| Portsmouth Umpqua | Pacific Time | 08:00 |
| Portsmouth Lyminge | United Kingdom Time | 00:00 |
| Portsmouth Unawatuna | India Standard Time | -05:30 |
| Portsmouth Sauda | Central European Time | -01:00 |
| Portsmouth Underwood | Eastern Australia Time | -10:00 |
| Portsmouth Lviv | Eastern European Time | -02:00 |
| Portsmouth Umm Al Arais | Central European Time | -01:00 |
| Portsmouth Saugatuck | Eastern Time | 05:00 |
| Portsmouth Umhlanga | South Africa Standard Time | -02:00 |
| Portsmouth Luverne | Central Time | 06:00 |
| Portsmouth Ultimo | Eastern Australia Time | -11:00 |
| Portsmouth Saugeen Shores | Eastern Time | 05:00 |
| Portsmouth Zürs | Central European Time | -01:00 |
| Portsmouth Luzerne | Eastern Time | 05:00 |
| Portsmouth Zwingenberg | Central European Time | -01:00 |
| Portsmouth Saugeen Shores | Eastern Time | 05:00 |
| Portsmouth Zwiefalten | Central European Time | -01:00 |
| Portsmouth Kadima Zoran | Israel Time | -02:00 |
| Portsmouth Zweisimmen | Central European Time | -01:00 |
| Portsmouth Saugerties | Eastern Time | 05:00 |
| Portsmouth Kadambur | India Standard Time | -05:30 |
| Portsmouth Satna | India Standard Time | -05:30 |
| Portsmouth Kadapa | India Standard Time | -05:30 |
| Portsmouth Sausalito | Pacific Time | 08:00 |
| Portsmouth Kadapra | India Standard Time | -05:30 |
| Portsmouth Sault Ste. Marie | Eastern Time | 05:00 |
| Portsmouth Khetri Nagar | India Standard Time | -05:30 |
| Portsmouth Savar Kundla | India Standard Time | -05:30 |
| Portsmouth Khelil | Central European Time | -01:00 |
| Portsmouth Sawantwadi | India Standard Time | -05:30 |