| Southam tp. Tuy Hòa | Indochina Time | -06:00 |
| Southam Somers Point | Eastern Time | 05:00 |
| Southam Thurso | United Kingdom Time | 00:00 |
| Southam Germiston | South Africa Standard Time | -01:00 |
| Southam Moraitika | Eastern European Time | -02:00 |
| Southam San Marcos La Laguna | Central Time | 07:00 |
| Southam Ergolding | Central European Time | -01:00 |
| Southam Fenton | Central Time | 06:00 |
| Southam tp. Huế | Indochina Time | -06:00 |
| Southam Somerset | Eastern Time | 05:00 |
| Southam Thusis | Central European Time | -01:00 |
| Southam Fergus | Eastern Time | 05:00 |
| Southam Moormerland | Central European Time | -01:00 |
| Southam Saint Ann | Central Time | 06:00 |
| Southam Ericeira | Western European Time | 00:00 |
| Southam Federalsburg | Eastern Time | 05:00 |
| Southam tp. Hưng Yên | Indochina Time | -06:00 |
| Southam Somerton | Mountain Time | 08:00 |
| Southam Thornbury | United Kingdom Time | 00:00 |
| Southam Fennville | Eastern Time | 05:00 |
| Southam Moorooka | Eastern Australia Time | -09:00 |
| Southam Saint Anthony | Central Time | 06:00 |
| Southam Erbil | Arabian Time | -02:00 |
| Southam Fennell Bay | Eastern Australia Time | -10:00 |
| Southam tp. Hưng Yên | Indochina Time | -06:00 |
| Southam Sop Mae Kha | Indochina Time | -06:00 |
| Southam Thornleigh | Eastern Australia Time | -10:00 |
| Southam Saint Anton am Arlberg | Central European Time | -01:00 |
| Southam Mooroolbark | Eastern Australia Time | -10:00 |
| Southam Soquel | Pacific Time | 08:00 |
| Southam Epping | United Kingdom Time | 00:00 |
| Southam Saint-Aunès | Central European Time | -01:00 |
| Southam tp. Long Xuyên | Indochina Time | -06:00 |
| Southam Sonipat | India Standard Time | -04:30 |
| Southam Thoothukudi | India Standard Time | -04:30 |
| Southam Sahibzada Ajit Singh Nagar | India Standard Time | -04:30 |
| Southam Morges | Central European Time | -01:00 |
| Southam Sonoma | Pacific Time | 08:00 |
| Southam Ephrata | Eastern Time | 05:00 |
| Southam Sai Thai | Indochina Time | -06:00 |
| Southam tp. Mỹ Tho | Indochina Time | -06:00 |
| Southam Sonora | Pacific Time | 08:00 |
| Southam Thoppur | India Standard Time | -04:30 |
| Southam Saidia | Western European Time | 01:00 |
| Southam Morley | Western Australia Time | -07:00 |
| Southam Sorel | Eastern Time | 05:00 |
| Southam Époisses | Central European Time | -01:00 |
| Southam San Miguel | Peru Time | 06:00 |
| Southam tp. Nam Định | Indochina Time | -06:00 |
| Southam Sorell | Eastern Australia Time | -10:00 |