| Algiers Concord | Eastern Australia Time | -09:00 |
| Algiers Conneaut | Eastern Time | 05:00 |
| Algiers Conifer | Mountain Time | 07:00 |
| Algiers Conthey | Central European Time | -01:00 |
| Algiers Conshohocken | Eastern Time | 05:00 |
| Algiers Constantine | United Kingdom Time | 00:00 |
| Algiers Como | Western Australia Time | -07:00 |
| Algiers Commerce | Pacific Time | 08:00 |
| Algiers Carhaix-Plouguer | Central European Time | -01:00 |
| Algiers Cardona | Central European Time | -01:00 |
| Algiers Cardonville | Central European Time | -01:00 |
| Algiers Carleton Place | Eastern Time | 05:00 |
| Algiers Carle Place | Eastern Time | 05:00 |
| Algiers Carlingford | Ireland Time | 00:00 |
| Algiers Carlin | Pacific Time | 08:00 |
| Algiers Cardiff | Eastern Australia Time | -09:00 |
| Algiers Cardigan | United Kingdom Time | 00:00 |
| Algiers Cárcar | Central European Time | -01:00 |
| Algiers Carbis Bay | United Kingdom Time | 00:00 |
| Algiers Bude | United Kingdom Time | 00:00 |
| Algiers Caraz | Peru Time | 06:00 |
| Algiers Caraíva | Brasilia Time | 04:00 |
| Algiers Buena | Eastern Time | 05:00 |
| Algiers Carmel-by-the-Sea | Pacific Time | 08:00 |
| Algiers Carlton | Eastern Australia Time | -09:00 |
| Algiers Carlton North | Eastern Australia Time | -09:00 |
| Algiers Carnac | Central European Time | -01:00 |
| Algiers Carnforth | United Kingdom Time | 00:00 |
| Algiers Chauth Ka Barwara | India Standard Time | -04:30 |
| Algiers Chavakachcheri | India Standard Time | -04:30 |
| Algiers Carole Park | Eastern Australia Time | -09:00 |
| Algiers Carolina Beach | Eastern Time | 05:00 |
| Algiers Caroline Springs | Eastern Australia Time | -09:00 |
| Algiers Chehalis | Pacific Time | 08:00 |
| Algiers Cheddar | United Kingdom Time | 00:00 |
| Algiers Chelan | Pacific Time | 08:00 |
| Algiers Chelsea | Eastern Time | 05:00 |
| Algiers Chemainus | Pacific Time | 08:00 |