| Guyancourt Kayseri | Turkey Time | -01:00 |
| Guyancourt Morelia | Central Time | 07:00 |
| Guyancourt Glasgow | United Kingdom Time | 01:00 |
| Guyancourt Gold | Eastern Australia Time | -08:00 |
| Guyancourt Yingkou | China Time | -06:00 |
| Guyancourt Abuja | West Africa Time | 01:00 |
| Guyancourt Zhangzhou | China Time | -06:00 |
| Guyancourt Stuttgart | Central European Time | 00:00 |
| Guyancourt Dortmund | Central European Time | 00:00 |
| Guyancourt Vladivostok | Vladivostok Time | -08:00 |
| Guyancourt Irkutsk | Irkutsk Time | -06:00 |
| Guyancourt Blantyre | Central Africa Time | 00:00 |
| Guyancourt New Kingston | Eastern Time | 07:00 |
| Guyancourt Üsküdar | Turkey Time | -01:00 |
| Guyancourt Genoa | Central European Time | 00:00 |
| Guyancourt Oslo | Central European Time | 00:00 |
| Guyancourt Cuttack | India Standard Time | -03:30 |
| Guyancourt Hachioji | Japan Time | -07:00 |
| Guyancourt Khabarovsk | Vladivostok Time | -08:00 |
| Guyancourt Khabarovsk Vtoroy | Vladivostok Time | -08:00 |
| Guyancourt Libreville | West Africa Time | 01:00 |
| Guyancourt Kerman | Iran Time | -02:30 |
| Guyancourt Chiclayo | Peru Time | 07:00 |
| Guyancourt Urmia | Iran Time | -02:30 |
| Guyancourt Bahçelievler | Turkey Time | -01:00 |
| Guyancourt Bengbu | China Time | -06:00 |
| Guyancourt Bikaner | India Standard Time | -03:30 |
| Guyancourt Umraniye | Turkey Time | -01:00 |
| Guyancourt Düsseldorf | Central European Time | 00:00 |
| Guyancourt Banjarmasin | Central Indonesia Time | -06:00 |
| Guyancourt Goteborg | Central European Time | 00:00 |
| Guyancourt Shihezi | China Time | -04:00 |
| Guyancourt Bucaramanga | Colombia Time | 07:00 |
| Guyancourt South Boston | Eastern Time | 06:00 |
| Guyancourt Kuching | Malaysia Time | -06:00 |
| Guyancourt Poznań | Central European Time | 00:00 |
| Guyancourt Heroica Veracruz | Central Time | 07:00 |
| Guyancourt Málaga | Central European Time | 00:00 |
| Guyancourt Bouaké | Greenwich Mean Time | 02:00 |
| Guyancourt Asmara | East Africa Time | -01:00 |
| Guyancourt Sokoto | West Africa Time | 01:00 |
| Guyancourt Uberlândia | Brasilia Time | 05:00 |
| Guyancourt Onitsha | West Africa Time | 01:00 |
| Guyancourt Funabashi | Japan Time | -07:00 |
| Guyancourt Albuquerque | Mountain Time | 08:00 |
| Guyancourt Hamhŭng | Pyongyang Time | -07:00 |
| Guyancourt Sorocaba | Brasilia Time | 05:00 |
| Guyancourt Helsinki | Eastern European Time | -01:00 |
| Guyancourt Warangal | India Standard Time | -03:30 |
| Guyancourt Santiago de Cuba | Cuba Time | 06:00 |