| Gebze Kuantan | Malaysia Time | -05:00 |
| Gebze Bologna | Central European Time | 01:00 |
| Gebze Xico | Central Time | 08:00 |
| Gebze Cheonan-si | Korean Time | -06:00 |
| Gebze Petare | Venezuela Time | 07:00 |
| Gebze Larkana | Pakistan Time | -02:00 |
| Gebze Al Qadarif | Central Africa Time | 01:00 |
| Gebze Christchurch | New Zealand Time | -09:00 |
| Gebze Stavropol | Moscow Time | 00:00 |
| Gebze Villahermosa | Central Time | 08:00 |
| Gebze Toyota | Japan Time | -06:00 |
| Gebze Manukau | New Zealand Time | -09:00 |
| Gebze Zhaoqing | China Time | -05:00 |
| Gebze Ataşehir | Turkey Time | 00:00 |
| Gebze Bhagalpur | India Standard Time | -02:30 |
| Gebze Sheikhupura | Pakistan Time | -02:00 |
| Gebze Carapicuíba | Brasilia Time | 06:00 |
| Gebze Wuppertal | Central European Time | 01:00 |
| Gebze Tamale | Greenwich Mean Time | 03:00 |
| Gebze Ulan-Ude | Irkutsk Time | -05:00 |
| Gebze Nagano | Japan Time | -06:00 |
| Gebze Bobo-Dioulasso | Greenwich Mean Time | 03:00 |
| Gebze Lublin | Central European Time | 01:00 |
| Gebze Aurora | Mountain Time | 09:00 |
| Gebze Coventry | United Kingdom Time | 02:00 |
| Gebze Halifax | Atlantic Time | 06:00 |
| Gebze Anqing | China Time | -05:00 |
| Gebze Taraz | East Kazakhstan Time | -03:00 |
| Gebze San Jose del Monte City | Philippine Time | -05:00 |
| Gebze Manizales | Colombia Time | 08:00 |
| Gebze Kwangmyŏng | Korean Time | -06:00 |
| Gebze Zanjan | Iran Time | -01:30 |
| Gebze Iwaki | Japan Time | -06:00 |
| Gebze Bacoor | Philippine Time | -05:00 |
| Gebze Asahikawa | Japan Time | -06:00 |
| Gebze Gimhae-si | Korean Time | -06:00 |
| Gebze Arkhangelsk | Moscow Time | 00:00 |
| Gebze Ambon City | Eastern Indonesia Time | -06:00 |
| Gebze Samarinda | Central Indonesia Time | -05:00 |
| Gebze Benito Juarez | Central Time | 08:00 |
| Gebze Bilbao | Central European Time | 01:00 |
| Gebze Mazatlán | Mexican Pacific Time | 09:00 |
| Gebze Santiago del Estero | Argentina Time | 06:00 |
| Gebze Takatsuki | Japan Time | -06:00 |
| Gebze Thessaloniki | Eastern European Time | 00:00 |
| Gebze Miguel Hidalgo | Central Time | 08:00 |
| Gebze Barinas | Venezuela Time | 07:00 |
| Gebze Neiva | Colombia Time | 08:00 |
| Gebze Okazaki | Japan Time | -06:00 |
| Gebze Bandar Abbās | Iran Time | -01:30 |