| Gebze Siping | China Time | -05:00 |
| Gebze Kagoshima | Japan Time | -06:00 |
| Gebze Surakarta | Western Indonesia Time | -04:00 |
| Gebze Huai'an | China Time | -05:00 |
| Gebze Bhavnagar | India Standard Time | -02:30 |
| Gebze Mar del Plata | Argentina Time | 06:00 |
| Gebze Bahawalpur | Pakistan Time | -02:00 |
| Gebze Zāhedān | Iran Time | -01:30 |
| Gebze Aden | Arabian Time | 00:00 |
| Gebze Nanded | India Standard Time | -02:30 |
| Gebze Orenburg | Yekaterinburg Time | -02:00 |
| Gebze Pristina | Central European Time | 01:00 |
| Gebze Changwon | Korean Time | -06:00 |
| Gebze Jiamusi | China Time | -05:00 |
| Gebze Antipolo | Philippine Time | -05:00 |
| Gebze Neijiang | China Time | -05:00 |
| Gebze Bremen | Central European Time | 01:00 |
| Gebze Meknes | Western European Time | 02:00 |
| Gebze Sharjah | Gulf Standard Time | -01:00 |
| Gebze Banciao | Taipei Time | -05:00 |
| Gebze Sargodha | Pakistan Time | -02:00 |
| Gebze Bangui | West Africa Time | 02:00 |
| Gebze Vilnius | Eastern European Time | 00:00 |
| Gebze Cancún | Eastern Time | 08:00 |
| Gebze Yangzhou | China Time | -05:00 |
| Gebze Novokuznetsk | Novokuznetsk Time | -04:00 |
| Gebze Kisangani | Central Africa Time | 01:00 |
| Gebze Port Said | Eastern European Time | 01:00 |
| Gebze Mersin | Turkey Time | 00:00 |
| Gebze Warri | West Africa Time | 02:00 |
| Gebze Guli | China Time | -05:00 |
| Gebze Ebute Ikorodu | West Africa Time | 02:00 |
| Gebze Taku | China Time | -05:00 |
| Gebze Jiangmen | China Time | -05:00 |
| Gebze Tucson | Mountain Time | 10:00 |
| Gebze Nashville | Central Time | 08:00 |
| Gebze Taif | Arabian Time | 00:00 |
| Gebze Beira | Central Africa Time | 01:00 |
| Gebze Guntur | India Standard Time | -02:30 |
| Gebze Touba | Greenwich Mean Time | 03:00 |
| Gebze Quebec City | Eastern Time | 07:00 |
| Gebze Hamedan | Iran Time | -01:30 |
| Gebze Cangzhou | China Time | -05:00 |
| Gebze San Salvador | Central Time | 09:00 |
| Gebze Santa María Chimalhuacán | Central Time | 08:00 |
| Gebze Torreón | Central Time | 08:00 |
| Gebze Dehradun | India Standard Time | -02:30 |
| Gebze Cuiabá | Amazon Time | 07:00 |
| Gebze Cuauhtémoc | Central Time | 08:00 |
| Gebze Ciudad López Mateos | Central Time | 08:00 |