| Lanzhou Silverton | Pacific Time | 15:00 |
| Lanzhou Silveira | Western European Time | 08:00 |
| Lanzhou Sikkarimedu | India Standard Time | 02:30 |
| Lanzhou Silay City | Philippine Time | 00:00 |
| Lanzhou Simpang Ampat | Malaysia Time | 00:00 |
| Lanzhou Sinaia | Eastern European Time | 06:00 |
| Lanzhou Simrishamn N | Central European Time | 07:00 |
| Lanzhou Simpang Renggam | Malaysia Time | 00:00 |
| Lanzhou Stirling | Mountain Time | 14:00 |
| Lanzhou Stilton | United Kingdom Time | 08:00 |
| Lanzhou Stevensville | Eastern Time | 12:00 |
| Lanzhou Stewiacke | Atlantic Time | 11:00 |
| Lanzhou San Juan de Miraflores | Peru Time | 13:00 |
| Lanzhou San Juan Bautista | Eastern Time | 13:00 |
| Lanzhou San Juan del Sur | Central Time | 14:00 |
| Lanzhou San Leone | Central European Time | 07:00 |
| Lanzhou San Joaquín | Colombia Time | 13:00 |
| Lanzhou Ruidoso | Mountain Time | 14:00 |
| Lanzhou Ruinen | Central European Time | 07:00 |
| Lanzhou Sativali | India Standard Time | 02:30 |
| Lanzhou Sassenberg | Central European Time | 07:00 |
| Lanzhou Sassnitz | Central European Time | 07:00 |
| Lanzhou Sauda | Central European Time | 07:00 |
| Lanzhou Saugatuck | Eastern Time | 12:00 |
| Lanzhou Saugeen Shores | Eastern Time | 12:00 |
| Lanzhou Saugeen Shores | Eastern Time | 12:00 |
| Lanzhou Saugerties | Eastern Time | 12:00 |
| Lanzhou Satna | India Standard Time | 02:30 |
| Lanzhou Sausalito | Pacific Time | 15:00 |
| Lanzhou Sault Ste. Marie | Eastern Time | 12:00 |
| Lanzhou Savar Kundla | India Standard Time | 02:30 |
| Lanzhou Sawantwadi | India Standard Time | 02:30 |
| Lanzhou Sawari Jawharnagar | India Standard Time | 02:30 |
| Lanzhou Sawtell | Eastern Australia Time | -03:00 |
| Lanzhou Sawyer | Eastern Time | 12:00 |
| Lanzhou Saxapahaw | Eastern Time | 12:00 |
| Lanzhou Saxonburg | Eastern Time | 12:00 |
| Lanzhou Sayalonga | Central European Time | 07:00 |