| Soyapango Chendamangalam | India Standard Time | -11:30 |
| Soyapango Chengdu | China Time | -14:00 |
| Soyapango Chennai | India Standard Time | -11:30 |
| Soyapango Chennai | India Standard Time | -11:30 |
| Soyapango Chennai | India Standard Time | -11:30 |
| Soyapango Chelan | Pacific Time | 01:00 |
| Soyapango Chehalis | Pacific Time | 01:00 |
| Soyapango Cheddar | United Kingdom Time | -07:00 |
| Soyapango Canaveral | Colombia Time | -01:00 |
| Soyapango Canandaigua | Eastern Time | -02:00 |
| Soyapango Chauth Ka Barwara | India Standard Time | -11:30 |
| Soyapango Chavakachcheri | India Standard Time | -11:30 |
| Soyapango Chepstow | United Kingdom Time | -07:00 |
| Soyapango Cherai | India Standard Time | -11:30 |
| Soyapango Cheras 9 Miles | Malaysia Time | -14:00 |
| Soyapango Cherthala | India Standard Time | -11:30 |
| Soyapango Cherukupalli | India Standard Time | -11:30 |
| Soyapango Chermside | Eastern Australia Time | -16:00 |
| Soyapango Commerce | Pacific Time | 01:00 |
| Soyapango Como | Western Australia Time | -14:00 |
| Soyapango Columbus Air Force Base | Central Time | -01:00 |
| Soyapango Columbus | Eastern Time | -02:00 |
| Soyapango Colyton | United Kingdom Time | -07:00 |
| Soyapango Comas | Peru Time | -01:00 |
| Soyapango Combarro | Central European Time | -08:00 |
| Soyapango Den Burg | Central European Time | -08:00 |
| Soyapango Delta | Pacific Time | 01:00 |
| Soyapango Denbigh | United Kingdom Time | -07:00 |
| Soyapango Den Hoorn Texel | Central European Time | -08:00 |
| Soyapango Delson | Eastern Time | -02:00 |
| Soyapango Delta | Mountain Time | 00:00 |
| Soyapango Conthey | Central European Time | -08:00 |
| Soyapango Conshohocken | Eastern Time | -02:00 |
| Soyapango Constantine | United Kingdom Time | -07:00 |
| Soyapango Condove | Central European Time | -08:00 |
| Soyapango Concord | Eastern Australia Time | -16:00 |
| Soyapango Conneaut | Eastern Time | -02:00 |
| Soyapango Conifer | Mountain Time | 00:00 |