| Spearfish Etterbeek | Central European Time | -08:00 |
| Spearfish Cullman | Central Time | -01:00 |
| Spearfish Cumberland Park | Central Australia Time | -17:30 |
| Spearfish Cumming | Eastern Time | -02:00 |
| Spearfish Cimadolmo | Central European Time | -08:00 |
| Spearfish Ciney | Central European Time | -08:00 |
| Spearfish Circleville | Eastern Time | -02:00 |
| Spearfish Cifuentes | Central European Time | -08:00 |
| Spearfish Cidade Ocidental | Brasilia Time | -04:00 |
| Spearfish Dadra | India Standard Time | -12:30 |
| Spearfish Dade City | Eastern Time | -02:00 |
| Spearfish Dabaspete | India Standard Time | -12:30 |
| Spearfish Cyberjaya | Malaysia Time | -15:00 |
| Spearfish Cygnet | Eastern Australia Time | -18:00 |
| Spearfish Cunit | Central European Time | -08:00 |
| Spearfish Cuorgnè | Central European Time | -08:00 |
| Spearfish Curral Velho | Cape Verde Time | -06:00 |
| Spearfish Currans Hill | Eastern Australia Time | -18:00 |
| Spearfish Cetona | Central European Time | -08:00 |
| Spearfish Český Krumlov | Central European Time | -08:00 |
| Spearfish Choudrant | Central Time | -01:00 |
| Spearfish Chotebor | Central European Time | -08:00 |
| Spearfish Chukai | Malaysia Time | -15:00 |
| Spearfish Christies Beach | Central Australia Time | -17:30 |
| Spearfish Chryston | United Kingdom Time | -07:00 |
| Spearfish Chuo | Japan Time | -16:00 |
| Spearfish Cene | Central European Time | -08:00 |
| Spearfish Cellefrouin | Central European Time | -08:00 |
| Spearfish Celano | Central European Time | -08:00 |
| Spearfish Celebration | Eastern Time | -02:00 |
| Spearfish Celina | Central Time | -01:00 |
| Spearfish Central City | Mountain Time | 00:00 |
| Spearfish Centralia | Eastern Time | -02:00 |
| Spearfish Central Jakarta | Western Indonesia Time | -14:00 |
| Spearfish Cervantes | Western Australia Time | -15:00 |
| Spearfish Cerovlje | Central European Time | -08:00 |
| Spearfish Cercedilla | Central European Time | -08:00 |
| Spearfish Céret | Central European Time | -08:00 |