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