| Southam Warburton | Eastern Australia Time | -10:00 |
| Southam Beaconsfield | Eastern Australia Time | -10:00 |
| Southam Warana | Eastern Australia Time | -09:00 |
| Southam San Juan de Miraflores | Peru Time | 06:00 |
| Southam Wappingers Falls | Eastern Time | 05:00 |
| Southam Frederica | Eastern Time | 05:00 |
| Southam Warner | Eastern Time | 05:00 |
| Southam Monticello | Eastern Time | 05:00 |
| Southam Woodinville | Pacific Time | 08:00 |
| Southam Beaconsfield | United Kingdom Time | 00:00 |
| Southam Woodend | Eastern Australia Time | -10:00 |
| Southam San Leone | Central European Time | -01:00 |
| Southam Woodfin | Eastern Time | 05:00 |
| Southam Franschhoek | South Africa Standard Time | -01:00 |
| Southam Woodford | Eastern Australia Time | -09:00 |
| Southam Montpelier | Eastern Time | 05:00 |
| Southam Wareham | Eastern Time | 05:00 |
| Southam Beaufort | Eastern Australia Time | -10:00 |
| Southam Zürs | Central European Time | -01:00 |
| Southam São Marcos | Western European Time | 00:00 |
| Southam Zoutelande | Central European Time | -01:00 |
| Southam Franz Josef Glacier | New Zealand Time | -12:00 |
| Southam Zuidhorn | Central European Time | -01:00 |
| Southam Montrose | Atlantic Time | 05:00 |
| Southam Zuidoostbeemster | Central European Time | -01:00 |
| Southam Beaufort | Eastern Time | 05:00 |
| Southam Zugliano | Central European Time | -01:00 |
| Southam São Miguel do Gostoso | Brasilia Time | 04:00 |
| Southam Xaxim | Brasilia Time | 04:00 |
| Southam Franklin Township | Eastern Time | 05:00 |
| Southam Xalapa | Central Time | 07:00 |
| Southam Montreal | Eastern Time | 05:00 |
| Southam Xalapa Enríquez | Central Time | 07:00 |
| Southam Beachwood | Eastern Time | 05:00 |
| Southam Xalisco | Mexican Pacific Time | 08:00 |
| Southam São Paulo | Brasilia Time | 04:00 |
| Southam Zweisimmen | Central European Time | -01:00 |
| Southam Fredonia | Eastern Time | 05:00 |
| Southam Zwingenberg | Central European Time | -01:00 |
| Southam Montreal East | Eastern Time | 05:00 |
| Southam Zwiefalten | Central European Time | -01:00 |
| Southam Baywood-Los Osos | Pacific Time | 08:00 |
| Southam Sherwood | Eastern Australia Time | -09:00 |
| Southam Freeland | Eastern Time | 05:00 |
| Southam Nala Sopara | India Standard Time | -04:30 |
| Southam Beckenham | Western Australia Time | -07:00 |
| Southam Shibpur | India Standard Time | -04:30 |
| Southam Freeport | Central Time | 06:00 |
| Southam Náměšť nad Oslavou | Central European Time | -01:00 |
| Southam Beckett Ridge | Eastern Time | 05:00 |