| Nantong Cumberland Park | Central Australia Time | -01:30 |
| Nantong Circleville | Eastern Time | 12:00 |
| Nantong Cimadolmo | Central European Time | 06:00 |
| Nantong Ciney | Central European Time | 06:00 |
| Nantong Cifuentes | Central European Time | 06:00 |
| Nantong Cidade Ocidental | Brasilia Time | 11:00 |
| Nantong Dadra | India Standard Time | 02:30 |
| Nantong Dade City | Eastern Time | 12:00 |
| Nantong Dabaspete | India Standard Time | 02:30 |
| Nantong Cyberjaya | Malaysia Time | 00:00 |
| Nantong Cygnet | Eastern Australia Time | -02:00 |
| Nantong Cunit | Central European Time | 06:00 |
| Nantong Cuorgnè | Central European Time | 06:00 |
| Nantong Cumming | Eastern Time | 12:00 |
| Nantong Curral Velho | Cape Verde Time | 09:00 |
| Nantong Currans Hill | Eastern Australia Time | -02:00 |
| Nantong Cetona | Central European Time | 06:00 |
| Nantong Český Krumlov | Central European Time | 06:00 |
| Nantong Chotebor | Central European Time | 06:00 |
| Nantong Choudrant | Central Time | 13:00 |
| Nantong Christies Beach | Central Australia Time | -01:30 |
| Nantong Chukai | Malaysia Time | 00:00 |
| Nantong Chryston | United Kingdom Time | 07:00 |
| Nantong Chuo | Japan Time | -01:00 |
| Nantong Cene | Central European Time | 06:00 |
| Nantong Central City | Mountain Time | 14:00 |
| Nantong Celano | Central European Time | 06:00 |
| Nantong Cedar Springs | Eastern Time | 12:00 |
| Nantong Ceelbuur | East Africa Time | 05:00 |
| Nantong Celebration | Eastern Time | 12:00 |
| Nantong Celina | Central Time | 13:00 |
| Nantong Cellefrouin | Central European Time | 06:00 |
| Nantong Cervantes | Western Australia Time | 00:00 |
| Nantong Cerovlje | Central European Time | 06:00 |
| Nantong Centralia | Eastern Time | 12:00 |
| Nantong Central Jakarta | Western Indonesia Time | 01:00 |
| Nantong Céret | Central European Time | 06:00 |
| Nantong Cercedilla | Central European Time | 06:00 |