| Richardson Dolynka | Eastern European Time | -08:00 |
| Richardson Boaz | Central Time | 00:00 |
| Richardson Tianjin | China Time | -13:00 |
| Richardson Vilanova del Camí | Central European Time | -07:00 |
| Richardson Chester | Eastern Time | -01:00 |
| Richardson Boambee | Eastern Australia Time | -15:00 |
| Richardson Al Mudayq | Gulf Standard Time | -09:00 |
| Richardson La Joya | Central Time | 00:00 |
| Richardson Dolus-d'Oléron | Central European Time | -07:00 |
| Richardson Boca del Río | Central Time | 00:00 |
| Richardson Sombreffe | Central European Time | -07:00 |
| Richardson Vila Nova de Famalicão | Western European Time | -06:00 |
| Richardson Chicago | Central Time | 00:00 |
| Richardson Ajanta | India Standard Time | -10:30 |
| Richardson Al Jaradiyah | Arabian Time | -08:00 |
| Richardson Leukerbad | Central European Time | -07:00 |
| Richardson Don Mueang | Indochina Time | -12:00 |
| Richardson Ajijic | Central Time | 00:00 |
| Richardson Solvang | Pacific Time | 02:00 |
| Richardson Vila Flores | Brasilia Time | -02:00 |
| Richardson Djelida | Central European Time | -06:00 |
| Richardson Aitkenvale | Eastern Australia Time | -15:00 |
| Richardson Al Jaghbub | Eastern European Time | -07:00 |
| Richardson Leura | Eastern Australia Time | -15:00 |
| Richardson Domžale | Central European Time | -07:00 |
| Richardson Airport West | Eastern Australia Time | -15:00 |
| Richardson Somanahalli | India Standard Time | -10:30 |
| Richardson Vieux-Mareuil | Central European Time | -07:00 |
| Richardson Distrito Federal | Central Time | 00:00 |
| Richardson Air Itam | Malaysia Time | -13:00 |
| Richardson Al-Mamurah | Central European Time | -06:00 |
| Richardson Levittown | Eastern Time | -01:00 |
| Richardson Domodossola | Central European Time | -07:00 |
| Richardson Aigle | Central European Time | -07:00 |
| Richardson Solothurn | Central European Time | -07:00 |
| Richardson Vijapadi | India Standard Time | -10:30 |
| Richardson El Médano | Western European Time | -06:00 |
| Richardson Aiea | Hawaii-Aleutian Time | 05:00 |
| Richardson Al Aaroui | Western European Time | -06:00 |
| Richardson Levico Terme | Central European Time | -07:00 |
| Richardson Dolo | Central European Time | -07:00 |
| Richardson Arden | Eastern Time | -01:00 |
| Richardson Solrød | Central European Time | -07:00 |
| Richardson Turin | Central European Time | -07:00 |
| Richardson El Ma Labiodh | Central European Time | -06:00 |
| Richardson Arcugnano | Central European Time | -07:00 |
| Richardson Akköy | Turkey Time | -08:00 |
| Richardson La Palma | Central European Time | -07:00 |
| Richardson Cramlington | United Kingdom Time | -06:00 |
| Richardson Ariana | Central European Time | -06:00 |