| Slough Sop Mae Kha | Indochina Time | -06:00 |
| Slough Davos | Central European Time | -01:00 |
| Slough Sonoma | Pacific Time | 08:00 |
| Slough Handforth | United Kingdom Time | 00:00 |
| Slough Sonora | Pacific Time | 08:00 |
| Slough Dawalwadi | India Standard Time | -04:30 |
| Slough Sonipat | India Standard Time | -04:30 |
| Slough Hang Dong | Indochina Time | -06:00 |
| Slough Somerton | Mountain Time | 08:00 |
| Slough Davidson | Eastern Time | 05:00 |
| Slough Sommières | Central European Time | -01:00 |
| Slough Handsworth Wood | United Kingdom Time | 00:00 |
| Slough Somogyvámos | Central European Time | -01:00 |
| Slough East Hills | Eastern Australia Time | -09:00 |
| Slough Shahtalai | India Standard Time | -04:30 |
| Slough Hampton | Eastern Australia Time | -09:00 |
| Slough Somers Point | Eastern Time | 05:00 |
| Slough East Jakarta | Western Indonesia Time | -06:00 |
| Slough Somerset | Eastern Time | 05:00 |
| Slough Hanamkonda | India Standard Time | -04:30 |
| Slough East Lyme | Eastern Time | 05:00 |
| Slough Hanau | Central European Time | -01:00 |
| Slough East Maitland | Eastern Australia Time | -09:00 |
| Slough Huntingdale | Western Australia Time | -07:00 |
| Slough East Angus | Eastern Time | 05:00 |
| Slough Hunter River | Atlantic Time | 04:00 |
| Slough East Aurora | Eastern Time | 05:00 |
| Slough Humboldt | Central Time | 06:00 |
| Slough East Gwillimbury | Eastern Time | 05:00 |
| Slough Hulshout | Central European Time | -01:00 |
| Slough East Hampton | Eastern Time | 05:00 |
| Slough Hultsfred | Central European Time | -01:00 |
| Slough East Greenwich | Eastern Time | 05:00 |
| Slough Hulu Langat | Malaysia Time | -07:00 |
| Slough Dwingeloo | Central European Time | -01:00 |
| Slough Hudson Oaks | Central Time | 06:00 |
| Slough Düsseldorf | Central European Time | -01:00 |
| Slough Hudsonville | Eastern Time | 05:00 |
| Slough Earlston | United Kingdom Time | 00:00 |
| Slough Huehuetoca | Central Time | 06:00 |
| Slough Earlton | Eastern Time | 05:00 |
| Slough Huez | Central European Time | -01:00 |
| Slough Easebourne | United Kingdom Time | 00:00 |
| Slough Huixquilucan de Degollado | Central Time | 06:00 |
| Slough Earley | United Kingdom Time | 00:00 |
| Slough Kathikas | Eastern European Time | -02:00 |
| Slough Kathu | Indochina Time | -06:00 |
| Slough Kasuya | Japan Time | -08:00 |
| Slough Katapady | India Standard Time | -04:30 |
| Slough Katlenburg-Lindau | Central European Time | -01:00 |