| Grudziądz Izhevsk | Samara Time | -02:00 |
| Grudziądz Jaboatão dos Guararapes | Brasilia Time | 05:00 |
| Grudziądz Shaoguan | China Time | -06:00 |
| Grudziądz Yancheng | China Time | -06:00 |
| Grudziądz Coyoacán | Central Time | 07:00 |
| Grudziądz Contagem | Brasilia Time | 05:00 |
| Grudziądz Santiago de Querétaro | Central Time | 07:00 |
| Grudziądz Bhilai | India Standard Time | -03:30 |
| Grudziądz Panshan | China Time | -06:00 |
| Grudziądz Djibouti | East Africa Time | -01:00 |
| Grudziądz Las Vegas | Pacific Time | 09:00 |
| Grudziądz Baltimore | Eastern Time | 06:00 |
| Grudziądz Saltillo | Central Time | 07:00 |
| Grudziądz Kermanshah | Iran Time | -02:30 |
| Grudziądz Ribeirão Preto | Brasilia Time | 05:00 |
| Grudziądz Al Hudaydah | Arabian Time | -01:00 |
| Grudziądz Pasig | Philippine Time | -06:00 |
| Grudziądz Bristol | United Kingdom Time | 01:00 |
| Grudziądz Jamshedpur | India Standard Time | -03:30 |
| Grudziądz Haikou | China Time | -06:00 |
| Grudziądz Ta‘izz | Arabian Time | -01:00 |
| Grudziądz São José dos Campos | Brasilia Time | 05:00 |
| Grudziądz Taizhou | China Time | -06:00 |
| Grudziądz Xingtai | China Time | -06:00 |
| Grudziądz Borivali | India Standard Time | -03:30 |
| Grudziądz Tlalpan | Central Time | 07:00 |
| Grudziądz Yaroslavl | Moscow Time | -01:00 |
| Grudziądz Benoni | South Africa Standard Time | 00:00 |
| Grudziądz Hamamatsu | Japan Time | -07:00 |
| Grudziądz Kochi | India Standard Time | -03:30 |
| Grudziądz Jinzhou | China Time | -06:00 |
| Grudziądz Amravati | India Standard Time | -03:30 |
| Grudziądz Abu Dhabi | Gulf Standard Time | -02:00 |
| Grudziądz Hai Phong | Indochina Time | -05:00 |
| Grudziądz Islamabad | Pakistan Time | -03:00 |
| Grudziądz Kirkuk | Arabian Time | -01:00 |
| Grudziądz Sangli | India Standard Time | -03:30 |
| Grudziądz Milwaukee | Central Time | 07:00 |
| Grudziądz Shuangyashan | China Time | -06:00 |
| Grudziądz Situbondo | Western Indonesia Time | -05:00 |
| Grudziądz Vancouver | Pacific Time | 09:00 |
| Grudziądz Scarborough | Eastern Time | 06:00 |
| Grudziądz Barnaul | Barnaul Time | -05:00 |
| Grudziądz Rotterdam | Central European Time | 00:00 |
| Grudziądz Luancheng | China Time | -06:00 |
| Grudziądz Mexicali | Pacific Time | 09:00 |
| Grudziądz Hermosillo | Mexican Pacific Time | 09:00 |
| Grudziądz Rasht | Iran Time | -02:30 |
| Grudziądz Abeokuta | West Africa Time | 01:00 |
| Grudziądz Essen | Central European Time | 00:00 |