| Reeuwijk Söll | Central European Time | 00:00 |
| Reeuwijk Solothurn | Central European Time | 00:00 |
| Reeuwijk Solrød | Central European Time | 00:00 |
| Reeuwijk Sóller | Central European Time | 00:00 |
| Reeuwijk Sodus | Eastern Time | 06:00 |
| Reeuwijk Sodus Point | Eastern Time | 06:00 |
| Reeuwijk Sohar | Gulf Standard Time | -02:00 |
| Reeuwijk Sokali | India Standard Time | -03:30 |
| Reeuwijk Soběslav | Central European Time | 00:00 |
| Reeuwijk Snoqualmie | Pacific Time | 09:00 |
| Reeuwijk Setagaya | Japan Time | -07:00 |
| Reeuwijk Seseña Nuevo | Central European Time | 00:00 |
| Reeuwijk Serranópolis | Brasilia Time | 05:00 |
| Reeuwijk Santa Catarina | Central Time | 07:00 |
| Reeuwijk Sant Miquel de Campmajor | Central European Time | 00:00 |
| Reeuwijk Sant Josep de sa Talaia | Central European Time | 00:00 |
| Reeuwijk Santa Ana | Central Time | 08:00 |
| Reeuwijk Santa Ana | Mexican Pacific Time | 09:00 |
| Reeuwijk Sans Souci | Eastern Australia Time | -08:00 |
| Reeuwijk Sanibel | Eastern Time | 06:00 |
| Reeuwijk Sankari | India Standard Time | -03:30 |
| Reeuwijk Sankt Olof | Central European Time | 00:00 |
| Reeuwijk Sankt Blasien | Central European Time | 00:00 |
| Reeuwijk Sankt Ibb | Central European Time | 00:00 |
| Reeuwijk Sennfeld | Central European Time | 00:00 |
| Reeuwijk Seoul | Korean Time | -07:00 |
| Reeuwijk Seoul | Korean Time | -07:00 |
| Reeuwijk Sepang | Malaysia Time | -06:00 |
| Reeuwijk Sepang | Malaysia Time | -06:00 |
| Reeuwijk Senden | Central European Time | 00:00 |
| Reeuwijk Sengurichi | India Standard Time | -03:30 |
| Reeuwijk Sendra | India Standard Time | -03:30 |
| Reeuwijk Senegal | Peru Time | 07:00 |
| Reeuwijk Seri Gading | Malaysia Time | -06:00 |
| Reeuwijk Seri Kembangan | Malaysia Time | -06:00 |
| Reeuwijk Seri Manjung | Malaysia Time | -06:00 |
| Reeuwijk Serdang | Malaysia Time | -06:00 |
| Reeuwijk Sequim | Pacific Time | 09:00 |