| Port Neches Xalapa | Central Time | 00:00 |
| Port Neches Simpang Ampat | Malaysia Time | -13:00 |
| Port Neches Xalapa Enríquez | Central Time | 00:00 |
| Port Neches Simpang Renggam | Malaysia Time | -13:00 |
| Port Neches Xalisco | Mexican Pacific Time | 01:00 |
| Port Neches Silveira | Western European Time | -06:00 |
| Port Neches Xaxim | Brasilia Time | -02:00 |
| Port Neches Siesta Key | Eastern Time | -01:00 |
| Port Neches Sigatoka | Fiji Time | -17:00 |
| Port Neches Signal Mountain | Eastern Time | -01:00 |
| Port Neches Sigulda | Eastern European Time | -08:00 |
| Port Neches Siheung-si | Korean Time | -14:00 |
| Port Neches Sikkarimedu | India Standard Time | -10:30 |
| Port Neches Sikardarpur | India Standard Time | -10:30 |
| Port Neches Silay City | Philippine Time | -13:00 |
| Port Neches Samoëns | Central European Time | -07:00 |
| Port Neches Samos | Eastern European Time | -08:00 |
| Port Neches Samouco | Western European Time | -06:00 |
| Port Neches San Andrés Cholula | Central Time | 00:00 |
| Port Neches San Andrés Cholula | Central Time | 00:00 |
| Port Neches San Agustín | Central Time | 00:00 |
| Port Neches Ruidoso | Mountain Time | 01:00 |
| Port Neches Ruinen | Central European Time | -07:00 |
| Port Neches Ruffec | Central European Time | -07:00 |
| Port Neches Rudrapur | India Standard Time | -10:30 |
| Port Neches Samana | Atlantic Time | -01:00 |
| Port Neches Sámara | Central Time | 01:00 |
| Port Neches Schrecksbach | Central European Time | -07:00 |
| Port Neches Schöndorf | Central European Time | -07:00 |
| Port Neches Schongau | Central European Time | -07:00 |
| Port Neches Schofield | Central Time | 00:00 |
| Port Neches Schlatt bei Diessenhofen | Central European Time | -07:00 |
| Port Neches Schleiz | Central European Time | -07:00 |
| Port Neches Schliersee | Central European Time | -07:00 |
| Port Neches Schinveld | Central European Time | -07:00 |
| Port Neches Schiermonnikoog | Central European Time | -07:00 |
| Port Neches Schiffdorf | Central European Time | -07:00 |
| Port Neches Scherpenheuvel-Zichem | Central European Time | -07:00 |