| Chennai Smiths Falls | Eastern Time | 09:30 |
| Chennai Honnihalli | India Standard Time | 00:00 |
| Chennai Sneem | Ireland Time | 04:30 |
| Chennai Hondarribia | Central European Time | 03:30 |
| Chennai Smethwick | United Kingdom Time | 04:30 |
| Chennai Honesdale | Eastern Time | 09:30 |
| Chennai Smithfield | Eastern Time | 09:30 |
| Chennai Honfleur | Central European Time | 03:30 |
| Chennai Seaton Ross | United Kingdom Time | 04:30 |
| Chennai Hong | Central European Time | 03:30 |
| Chennai Searsport | Eastern Time | 09:30 |
| Chennai Hong Kong | Hong Kong Time | -02:30 |
| Chennai Sandy Bay | Eastern Australia Time | -04:30 |
| Chennai Honiton | United Kingdom Time | 04:30 |
| Chennai Sand City | Pacific Time | 12:30 |
| Chennai Hong Kong | Hong Kong Time | -02:30 |
| Chennai Sandgate | Eastern Australia Time | -04:30 |
| Chennai Hong Kong | Hong Kong Time | -02:30 |
| Chennai Seekonk | Eastern Time | 09:30 |
| Chennai Seeley's Bay | Eastern Time | 09:30 |
| Chennai Seelow | Central European Time | 03:30 |
| Chennai Sedro-Woolley | Pacific Time | 12:30 |
| Chennai Seeb | Gulf Standard Time | 01:30 |
| Chennai Seebara | India Standard Time | 00:00 |
| Chennai Sedona | Mountain Time | 12:30 |
| Chennai Sedbergh | United Kingdom Time | 04:30 |
| Chennai Sechelt | Pacific Time | 12:30 |
| Chennai Sebree | Central Time | 10:30 |
| Chennai Sebring | Eastern Time | 09:30 |
| Chennai Šebrov-Kateřina | Central European Time | 03:30 |
| Chennai Sebastopol | Pacific Time | 12:30 |
| Chennai Seattle | Pacific Time | 12:30 |
| Chennai Seberang Jaya | Malaysia Time | -02:30 |
| Chennai Seberang Perai | Malaysia Time | -02:30 |
| Chennai Segamat District | Malaysia Time | -02:30 |
| Chennai Segur de Calafell | Central European Time | 03:30 |
| Chennai Seixal | Western European Time | 04:30 |
| Chennai Selayang | Malaysia Time | -02:30 |
| Chennai Selah | Pacific Time | 12:30 |
| Chennai Selangor | Malaysia Time | -02:30 |
| Chennai Senai | Malaysia Time | -02:30 |
| Chennai Sitiawan | Malaysia Time | -02:30 |
| Chennai Selinsgrove | Eastern Time | 09:30 |
| Chennai Sementina | Central European Time | 03:30 |
| Chennai Semaphore | Central Australia Time | -04:00 |
| Chennai Selouane | Western European Time | 04:30 |
| Chennai West Hindmarsh | Central Australia Time | -04:00 |
| Chennai West Kempsey | Eastern Australia Time | -04:30 |
| Chennai West Kirby | United Kingdom Time | 04:30 |
| Chennai West Footscray | Eastern Australia Time | -04:30 |