| Echternach Zhongshan | China Time | -06:00 |
| Echternach Cova da Piedade | Western European Time | 01:00 |
| Echternach Zillah | Pacific Time | 09:00 |
| Echternach Coulter | United Kingdom Time | 01:00 |
| Echternach Zirakpur | India Standard Time | -03:30 |
| Echternach Courmayeur | Central European Time | 00:00 |
| Echternach Zikhron Ya'akov | Israel Time | -01:00 |
| Echternach Covington | Central Time | 07:00 |
| Echternach Zofingen | Central European Time | 00:00 |
| Echternach Cowaramup | Western Australia Time | -06:00 |
| Echternach Zollikerberg | Central European Time | 00:00 |
| Echternach Cozumel | Eastern Time | 07:00 |
| Echternach Doesburg | Central European Time | 00:00 |
| Echternach Docklands | Eastern Australia Time | -08:00 |
| Echternach Cramlington | United Kingdom Time | 01:00 |
| Echternach Dobbs Ferry | Eastern Time | 06:00 |
| Echternach Chianciano Terme | Central European Time | 00:00 |
| Echternach Chiang Mai | Indochina Time | -05:00 |
| Echternach Chicago | Central Time | 07:00 |
| Echternach Chesterland | Eastern Time | 06:00 |
| Echternach Chestermere | Mountain Time | 08:00 |
| Echternach Chesterton | Central Time | 07:00 |
| Echternach Chestertown | Eastern Time | 06:00 |
| Echternach Chester Hill | Eastern Australia Time | -08:00 |
| Echternach Chester | Eastern Time | 06:00 |
| Echternach Corralejo | Western European Time | 01:00 |
| Echternach Chikusa Ward | Japan Time | -07:00 |
| Echternach Cortona | Central European Time | 00:00 |
| Echternach Corte De' Frati | Central European Time | 00:00 |
| Echternach Corte Madera | Pacific Time | 09:00 |
| Echternach Costa da Caparica | Western European Time | 01:00 |
| Echternach Costa d'en Blanes | Central European Time | 00:00 |
| Echternach Cosmopolis | Pacific Time | 09:00 |
| Echternach Cottage Grove | Pacific Time | 09:00 |
| Echternach Cottonwood | Mountain Time | 09:00 |
| Echternach Costa Teguise | Western European Time | 01:00 |
| Echternach Cotgrave | United Kingdom Time | 01:00 |
| Echternach Cotati | Pacific Time | 09:00 |