| Gdynia Elizabeth | Central Australia Time | -07:30 |
| Gdynia Elizabeth Bay | Eastern Australia Time | -08:00 |
| Gdynia Elexalde | Central European Time | 00:00 |
| Gdynia Elen | Central European Time | 00:00 |
| Gdynia El Tablero | Western European Time | 01:00 |
| Gdynia El Rodadero | Colombia Time | 07:00 |
| Gdynia Elbigenalp | Central European Time | 00:00 |
| Gdynia Elda | Central European Time | 00:00 |
| Gdynia Coulter | United Kingdom Time | 01:00 |
| Gdynia Cottonwood | Mountain Time | 09:00 |
| Gdynia Cotgrave | United Kingdom Time | 01:00 |
| Gdynia Cottage Grove | Pacific Time | 09:00 |
| Gdynia Courthézon | Central European Time | 00:00 |
| Gdynia Cova da Piedade | Western European Time | 01:00 |
| Gdynia Covington | Central Time | 07:00 |
| Gdynia Cowaramup | Western Australia Time | -06:00 |
| Gdynia Court-St.-Etienne | Central European Time | 00:00 |
| Gdynia Courmayeur | Central European Time | 00:00 |
| Gdynia Corralejo | Western European Time | 01:00 |
| Gdynia Cortona | Central European Time | 00:00 |
| Gdynia Corte De' Frati | Central European Time | 00:00 |
| Gdynia Corte Madera | Pacific Time | 09:00 |
| Gdynia Costa da Caparica | Western European Time | 01:00 |
| Gdynia Costa d'en Blanes | Central European Time | 00:00 |
| Gdynia Cotati | Pacific Time | 09:00 |
| Gdynia Cosmopolis | Pacific Time | 09:00 |
| Gdynia Costa Teguise | Western European Time | 01:00 |
| Gdynia Dikson | Krasnoyarsk Time | -05:00 |
| Gdynia Dillon | Mountain Time | 08:00 |
| Gdynia Dillingen | Central European Time | 00:00 |
| Gdynia Dingle | Ireland Time | 01:00 |
| Gdynia Dinant | Central European Time | 00:00 |
| Gdynia Dinan | Central European Time | 00:00 |
| Gdynia Cozumel | Eastern Time | 07:00 |
| Gdynia Cramlington | United Kingdom Time | 01:00 |
| Gdynia Differdange | Central European Time | 00:00 |
| Gdynia Digne | Central European Time | 00:00 |
| Gdynia Dikili | Turkey Time | -01:00 |