| Gebze Brahmapur | India Standard Time | -02:30 |
| Gebze São Vicente | Brasilia Time | 06:00 |
| Gebze Orel | Moscow Time | 00:00 |
| Gebze Corpus Christi | Central Time | 08:00 |
| Gebze Suizhou | China Time | -05:00 |
| Gebze Posadas | Argentina Time | 06:00 |
| Gebze Al ‘Amārah | Arabian Time | 00:00 |
| Gebze Volzhskiy | Volgograd Time | 00:00 |
| Gebze Riverside | Pacific Time | 10:00 |
| Gebze Villavicencio | Colombia Time | 08:00 |
| Gebze Jundiaí | Brasilia Time | 06:00 |
| Gebze San Miguelito | Eastern Time | 08:00 |
| Gebze Smolensk | Moscow Time | 00:00 |
| Gebze Ciudad del Este | Paraguay Time | 07:00 |
| Gebze Pelotas | Brasilia Time | 06:00 |
| Gebze Kherson | Eastern European Time | 00:00 |
| Gebze Shahjahanpur | India Standard Time | -02:30 |
| Gebze Akita | Japan Time | -06:00 |
| Gebze Maroua | West Africa Time | 02:00 |
| Gebze Morón | Argentina Time | 06:00 |
| Gebze Anápolis | Brasilia Time | 06:00 |
| Gebze Pachuca | Central Time | 08:00 |
| Gebze Shimoga | India Standard Time | -02:30 |
| Gebze Samarkand | Uzbekistan Time | -02:00 |
| Gebze Murmansk | Moscow Time | 00:00 |
| Gebze Islington | United Kingdom Time | 02:00 |
| Gebze Holguín | Cuba Time | 07:00 |
| Gebze Oskemen | East Kazakhstan Time | -03:00 |
| Gebze Diwaniyah | Arabian Time | 00:00 |
| Gebze Shangrao | China Time | -05:00 |
| Gebze Mataram | Central Indonesia Time | -05:00 |
| Gebze Andijan | Uzbekistan Time | -02:00 |
| Gebze Reading | United Kingdom Time | 02:00 |
| Gebze Iași | Eastern European Time | 00:00 |
| Gebze Valladolid | Central European Time | 01:00 |
| Gebze Poltava | Eastern European Time | 00:00 |
| Gebze New Delhi | India Standard Time | -02:30 |
| Gebze Koshigaya | Japan Time | -06:00 |
| Gebze Vladikavkaz | Moscow Time | 00:00 |
| Gebze Grodno | Moscow Time | 00:00 |
| Gebze Katowice | Central European Time | 01:00 |
| Gebze Rohtak | India Standard Time | -02:30 |
| Gebze Baicheng | China Time | -05:00 |
| Gebze Chimbote | Peru Time | 08:00 |
| Gebze Cluj-Napoca | Eastern European Time | 00:00 |
| Gebze Calamba | Philippine Time | -05:00 |
| Gebze Bauchi | West Africa Time | 02:00 |
| Gebze Cherepovets | Moscow Time | 00:00 |
| Gebze Saint Louis | Central Time | 08:00 |
| Gebze Armenia | Colombia Time | 08:00 |