| Giessen Zaporizhia | Eastern European Time | -01:00 |
| Giessen Marseille | Central European Time | 00:00 |
| Giessen Al Zarqa | Eastern European Time | -01:00 |
| Giessen Çankaya | Turkey Time | -01:00 |
| Giessen Boumerdas | Central European Time | 01:00 |
| Giessen Jalandhar | India Standard Time | -03:30 |
| Giessen Thiruvananthapuram | India Standard Time | -03:30 |
| Giessen Sakai | Japan Time | -07:00 |
| Giessen Anyang | China Time | -06:00 |
| Giessen San Miguel de Tucuman | Argentina Time | 05:00 |
| Giessen Cotonou | West Africa Time | 01:00 |
| Giessen Salem | India Standard Time | -03:30 |
| Giessen Tiruchirappalli | India Standard Time | -03:30 |
| Giessen Homs | Eastern European Time | -01:00 |
| Giessen Hohhot | China Time | -06:00 |
| Giessen Niamey | West Africa Time | 01:00 |
| Giessen Tainan City | Taipei Time | -06:00 |
| Giessen Shangyu | China Time | -06:00 |
| Giessen Łódź | Central European Time | 00:00 |
| Giessen Dammam | Arabian Time | -01:00 |
| Giessen Xining | China Time | -06:00 |
| Giessen Kahrīz | Iran Time | -02:30 |
| Giessen Kota | India Standard Time | -03:30 |
| Giessen Natal | Brasilia Time | 05:00 |
| Giessen Bhubaneshwar | India Standard Time | -03:30 |
| Giessen Qinhuangdao | China Time | -06:00 |
| Giessen Hengyang | China Time | -06:00 |
| Giessen Antalya | Turkey Time | -01:00 |
| Giessen Kraków | Central European Time | 00:00 |
| Giessen Aligarh | India Standard Time | -03:30 |
| Giessen Da Nang | Indochina Time | -05:00 |
| Giessen Pietermaritzburg | South Africa Standard Time | 00:00 |
| Giessen Lomé | Greenwich Mean Time | 02:00 |
| Giessen Trujillo | Peru Time | 07:00 |
| Giessen Malang | Western Indonesia Time | -05:00 |
| Giessen Ciudad Guayana | Venezuela Time | 06:00 |
| Giessen Bareilly | India Standard Time | -03:30 |
| Giessen Kigali | Central Africa Time | 00:00 |
| Giessen Teresina | Brasilia Time | 05:00 |
| Giessen Xinxiang | China Time | -06:00 |
| Giessen São Bernardo do Campo | Brasilia Time | 05:00 |
| Giessen Hegang | China Time | -06:00 |
| Giessen Rīga | Eastern European Time | -01:00 |
| Giessen Amsterdam | Central European Time | 00:00 |
| Giessen Oyo | West Africa Time | 01:00 |
| Giessen Quetta | Pakistan Time | -03:00 |
| Giessen Nottingham | United Kingdom Time | 01:00 |
| Giessen Campo Grande | Amazon Time | 06:00 |
| Giessen Ashgabat | Turkmenistan Time | -03:00 |
| Giessen Álvaro Obregón | Central Time | 07:00 |