| Southam Gland | Central European Time | -01:00 |
| Southam Alvor | Western European Time | 00:00 |
| Southam Tewkesbury | United Kingdom Time | 00:00 |
| Southam Sanibel | Eastern Time | 05:00 |
| Southam Peachtree Corners | Eastern Time | 05:00 |
| Southam Gun Barrel City | Central Time | 06:00 |
| Southam Ruidoso | Mountain Time | 07:00 |
| Southam Bandon | Pacific Time | 08:00 |
| Southam Glandore | Central Australia Time | -09:30 |
| Southam Alverca do Ribatejo | Western European Time | 00:00 |
| Southam Tuscola | Central Time | 06:00 |
| Southam Sankari | India Standard Time | -04:30 |
| Southam Pearce | Eastern Australia Time | -10:00 |
| Southam Guniyal Gaon | India Standard Time | -04:30 |
| Southam Ruinen | Central European Time | -01:00 |
| Southam Ascot Vale | Eastern Australia Time | -10:00 |
| Southam Glarus | Central European Time | -01:00 |
| Southam Altstätten | Central European Time | -01:00 |
| Southam Tusmore | Central Australia Time | -09:30 |
| Southam Sankt Olof | Central European Time | -01:00 |
| Southam Paul | Mountain Time | 07:00 |
| Southam Guntersville | Central Time | 06:00 |
| Southam Roxbury Township | Eastern Time | 05:00 |
| Southam Asendorf | Central European Time | -01:00 |
| Southam Gladstone Park | Eastern Australia Time | -10:00 |
| Southam Altona North | Eastern Australia Time | -10:00 |
| Southam Teriang | Malaysia Time | -07:00 |
| Southam Sankt Blasien | Central European Time | -01:00 |
| Southam Pattaya | Indochina Time | -06:00 |
| Southam Gum Spring | Eastern Time | 05:00 |
| Southam Rowley Regis | United Kingdom Time | 00:00 |
| Southam Ascoli Satriano | Central European Time | -01:00 |
| Southam Gladwin | Eastern Time | 05:00 |
| Southam Adoor | India Standard Time | -04:30 |
| Southam Tenala | Eastern European Time | -02:00 |
| Southam Sankt Ibb | Central European Time | -01:00 |
| Southam Patterdale | United Kingdom Time | 00:00 |
| Southam Gulf Breeze | Central Time | 06:00 |
| Southam Rovinj | Central European Time | -01:00 |
| Southam Ascona | Central European Time | -01:00 |
| Southam Giżyce | Central European Time | -01:00 |
| Southam Adpar | United Kingdom Time | 00:00 |
| Southam Tenali | India Standard Time | -04:30 |
| Southam Sângeorgiu de Mureș | Eastern European Time | -02:00 |
| Southam Pass Christian | Central Time | 06:00 |
| Southam Gulf Shores | Central Time | 06:00 |
| Southam Rubano | Central European Time | -01:00 |
| Southam Ashbourne | United Kingdom Time | 00:00 |
| Southam Chippewa Falls | Central Time | 06:00 |
| Southam Altona | Eastern Australia Time | -10:00 |