| Byrdstown Silverton | Pacific Time | 02:00 |
| Byrdstown Silveira | Western European Time | -06:00 |
| Byrdstown Sikkarimedu | India Standard Time | -11:30 |
| Byrdstown Silay City | Philippine Time | -14:00 |
| Byrdstown Simpang Ampat | Malaysia Time | -14:00 |
| Byrdstown Sinaia | Eastern European Time | -08:00 |
| Byrdstown Simrishamn N | Central European Time | -07:00 |
| Byrdstown Simpang Renggam | Malaysia Time | -14:00 |
| Byrdstown Stirling | Mountain Time | 01:00 |
| Byrdstown Stilton | United Kingdom Time | -06:00 |
| Byrdstown Stevensville | Eastern Time | -01:00 |
| Byrdstown Stewiacke | Atlantic Time | -02:00 |
| Byrdstown San Juan de Miraflores | Peru Time | -01:00 |
| Byrdstown San Juan Bautista | Eastern Time | -01:00 |
| Byrdstown San Juan del Sur | Central Time | 00:00 |
| Byrdstown San Leone | Central European Time | -07:00 |
| Byrdstown San Joaquín | Colombia Time | -01:00 |
| Byrdstown Ruidoso | Mountain Time | 01:00 |
| Byrdstown Ruinen | Central European Time | -07:00 |
| Byrdstown Sativali | India Standard Time | -11:30 |
| Byrdstown Sassenberg | Central European Time | -07:00 |
| Byrdstown Sassnitz | Central European Time | -07:00 |
| Byrdstown Sauda | Central European Time | -07:00 |
| Byrdstown Saugatuck | Eastern Time | -01:00 |
| Byrdstown Saugeen Shores | Eastern Time | -01:00 |
| Byrdstown Saugeen Shores | Eastern Time | -01:00 |
| Byrdstown Saugerties | Eastern Time | -01:00 |
| Byrdstown Satna | India Standard Time | -11:30 |
| Byrdstown Sausalito | Pacific Time | 02:00 |
| Byrdstown Sault Ste. Marie | Eastern Time | -01:00 |
| Byrdstown Savar Kundla | India Standard Time | -11:30 |
| Byrdstown Sawantwadi | India Standard Time | -11:30 |
| Byrdstown Sawari Jawharnagar | India Standard Time | -11:30 |
| Byrdstown Sawtell | Eastern Australia Time | -17:00 |
| Byrdstown Sawyer | Eastern Time | -01:00 |
| Byrdstown Saxapahaw | Eastern Time | -01:00 |
| Byrdstown Saxonburg | Eastern Time | -01:00 |
| Byrdstown Sayalonga | Central European Time | -07:00 |