| Sydney Clonmel | Ireland Time | 09:00 |
| Sydney Chelan | Pacific Time | 17:00 |
| Sydney Madeira Beach | Eastern Time | 14:00 |
| Sydney Chelsea | Eastern Time | 14:00 |
| Sydney Clinton | Central Time | 15:00 |
| Sydney Chemainus | Pacific Time | 17:00 |
| Sydney Macquarie | Eastern Australia Time | 00:00 |
| Sydney Condove | Central European Time | 08:00 |
| Sydney Clifton Hill | Eastern Australia Time | 00:00 |
| Sydney Concord | Eastern Australia Time | 00:00 |
| Sydney Macquarie Fields | Eastern Australia Time | 00:00 |
| Sydney Conneaut | Eastern Time | 14:00 |
| Sydney Clerques | Central European Time | 08:00 |
| Sydney Conifer | Mountain Time | 16:00 |
| Sydney Lehighton | Eastern Time | 14:00 |
| Sydney Commerce | Pacific Time | 17:00 |
| Sydney Clervaux | Central European Time | 08:00 |
| Sydney Como | Western Australia Time | 02:00 |
| Sydney Lehragaga | India Standard Time | 04:30 |
| Sydney Columbus Air Force Base | Central Time | 15:00 |
| Sydney Cetona | Central European Time | 08:00 |
| Sydney Columbus | Eastern Time | 14:00 |
| Sydney Mackinaw | Central Time | 15:00 |
| Sydney Colyton | United Kingdom Time | 09:00 |
| Sydney Český Krumlov | Central European Time | 08:00 |
| Sydney Comas | Peru Time | 15:00 |
| Sydney Macksville | Eastern Australia Time | 00:00 |
| Sydney Combarro | Central European Time | 08:00 |
| Sydney Clawson | Eastern Time | 14:00 |
| Sydney Dehiwala-Mount Lavinia | India Standard Time | 04:30 |
| Sydney Mafra | Western European Time | 09:00 |
| Sydney Deggingen | Central European Time | 08:00 |
| Sydney Clearwater | Eastern Time | 14:00 |
| Sydney Degelis | Eastern Time | 14:00 |
| Sydney Magdalena del Mar | Peru Time | 15:00 |
| Sydney Dedham | United Kingdom Time | 09:00 |
| Sydney Clayton South | Eastern Australia Time | 00:00 |
| Sydney Decherd | Central Time | 15:00 |
| Sydney Magill | Central Australia Time | 00:30 |
| Sydney Dededo | Chamorro Standard Time | 00:00 |
| Sydney Clayton | Eastern Time | 14:00 |
| Sydney De Haan | Central European Time | 08:00 |
| Sydney Mae Hia | Indochina Time | 03:00 |
| Sydney Death Valley Junction | Pacific Time | 17:00 |
| Sydney Cle Elum | Pacific Time | 17:00 |
| Sydney Conthey | Central European Time | 08:00 |
| Sydney Mae Na Wang | Indochina Time | 03:00 |
| Sydney Conshohocken | Eastern Time | 14:00 |
| Sydney Clear Lake | Central Time | 15:00 |
| Sydney Constantine | United Kingdom Time | 09:00 |