| Portsmouth White Hall | Central Time | 06:00 |
| Portsmouth Story City | Central Time | 06:00 |
| Portsmouth Auckland | New Zealand Time | -13:00 |
| Portsmouth Rosendal | Central European Time | -01:00 |
| Portsmouth Eichenzell | Central European Time | -01:00 |
| Portsmouth Senegal | Peru Time | 05:00 |
| Portsmouth Lammhult | Central European Time | -01:00 |
| Portsmouth Rosendale | Eastern Time | 05:00 |
| Portsmouth White Lake charter Township | Eastern Time | 05:00 |
| Portsmouth Stonington | Eastern Time | 05:00 |
| Portsmouth Auckland | New Zealand Time | -13:00 |
| Portsmouth Rosemount | Eastern Australia Time | -10:00 |
| Portsmouth Eigeltingen | Central European Time | -01:00 |
| Portsmouth Soběslav | Central European Time | -01:00 |
| Portsmouth Lamoli | Central European Time | -01:00 |
| Portsmouth Rosemère | Eastern Time | 05:00 |
| Portsmouth Wheatley | Central Time | 06:00 |
| Portsmouth Stony Plain | Mountain Time | 07:00 |
| Portsmouth Auckland | New Zealand Time | -13:00 |
| Portsmouth Rosemont | Central Time | 06:00 |
| Portsmouth Einsiedeln | Central European Time | -01:00 |
| Portsmouth Snoqualmie | Pacific Time | 08:00 |
| Portsmouth Lanai City | Hawaii-Aleutian Time | 10:00 |
| Portsmouth Roncq | Central European Time | -01:00 |
| Portsmouth Wheaton-Glenmont | Eastern Time | 05:00 |
| Portsmouth Stonyfell | Central Australia Time | -10:30 |
| Portsmouth Auckland | New Zealand Time | -13:00 |
| Portsmouth Romano D'ezzelino | Central European Time | -01:00 |
| Portsmouth Eisfeld | Central European Time | -01:00 |
| Portsmouth Setagaya | Japan Time | -09:00 |
| Portsmouth Lanark | United Kingdom Time | 00:00 |
| Portsmouth Romanel-sur-Lausanne | Central European Time | -01:00 |
| Portsmouth Wetzikon | Central European Time | -01:00 |
| Portsmouth Stone Harbor | Eastern Time | 05:00 |
| Portsmouth Auderghem | Central European Time | -01:00 |
| Portsmouth Rolling Hills Estates | Pacific Time | 08:00 |
| Portsmouth Eisleben | Central European Time | -01:00 |
| Portsmouth Seseña Nuevo | Central European Time | -01:00 |
| Portsmouth Lampeter | United Kingdom Time | 00:00 |
| Portsmouth Roma | Central Time | 06:00 |
| Portsmouth Wexford | Ireland Time | 00:00 |
| Portsmouth Stone Mountain | Eastern Time | 05:00 |
| Portsmouth Aukrug | Central European Time | -01:00 |
| Portsmouth Quiringuicharo | Central Time | 06:00 |
| Portsmouth Deutschlandsberg | Central European Time | -01:00 |
| Portsmouth Serranópolis | Brasilia Time | 03:00 |
| Portsmouth Lakhra | Pakistan Time | -05:00 |
| Portsmouth Quinns Rocks | Western Australia Time | -08:00 |
| Portsmouth Whalley | United Kingdom Time | 00:00 |
| Portsmouth Stonegate | United Kingdom Time | 00:00 |