| Gaston Cardiff | Eastern Australia Time | -14:00 |
| Gaston Cardigan | United Kingdom Time | -05:00 |
| Gaston Cárcar | Central European Time | -06:00 |
| Gaston Caraz | Peru Time | 01:00 |
| Gaston Carbis Bay | United Kingdom Time | -05:00 |
| Gaston Carmel-by-the-Sea | Pacific Time | 03:00 |
| Gaston Carlingford | Ireland Time | -05:00 |
| Gaston Carlton | Eastern Australia Time | -14:00 |
| Gaston Carlton North | Eastern Australia Time | -14:00 |
| Gaston Caroline Springs | Eastern Australia Time | -14:00 |
| Gaston Carolina Beach | Eastern Time | 00:00 |
| Gaston Carnforth | United Kingdom Time | -05:00 |
| Gaston Carole Park | Eastern Australia Time | -14:00 |
| Gaston Carnac | Central European Time | -06:00 |
| Gaston Brunstatt | Central European Time | -06:00 |
| Gaston Brunswick | Central European Time | -06:00 |
| Gaston Brunswick East | Eastern Australia Time | -14:00 |
| Gaston Brunswick Heads | Eastern Australia Time | -14:00 |
| Gaston Bruceville-Eddy | Central Time | 01:00 |
| Gaston Bruneck | Central European Time | -06:00 |
| Gaston Bicton | Western Australia Time | -12:00 |
| Gaston Bidhannagar | India Standard Time | -09:30 |
| Gaston Bidor | Malaysia Time | -12:00 |
| Gaston Biebesheim am Rhein | Central European Time | -06:00 |
| Gaston Biebrich | Central European Time | -06:00 |
| Gaston Bhur | India Standard Time | -09:30 |
| Gaston Bhuvanagiri | India Standard Time | -09:30 |
| Gaston Bibione | Central European Time | -06:00 |
| Gaston Biberbach | Central European Time | -06:00 |
| Gaston Bhigwan | India Standard Time | -09:30 |
| Gaston Bhilai | India Standard Time | -09:30 |
| Gaston Bhilar | India Standard Time | -09:30 |
| Gaston Bhimtal | India Standard Time | -09:30 |
| Gaston Bhitoli Khurd | India Standard Time | -09:30 |
| Gaston Bhuinj | India Standard Time | -09:30 |
| Gaston Bhubaneswar | India Standard Time | -09:30 |
| Gaston Bhose | India Standard Time | -09:30 |
| Gaston Bhatpachlana | India Standard Time | -09:30 |