| Tsukuba Jamnagar | India Standard Time | 03:30 |
| Tsukuba Sacramento | Pacific Time | 16:00 |
| Tsukuba Aracaju | Brasilia Time | 12:00 |
| Tsukuba Port Sudan | Central Africa Time | 07:00 |
| Tsukuba Santa Fe | Argentina Time | 12:00 |
| Tsukuba San Pedro Sula | Central Time | 15:00 |
| Tsukuba Suez | Eastern European Time | 07:00 |
| Tsukuba Dresden | Central European Time | 07:00 |
| Tsukuba Tomsk | Tomsk Time | 02:00 |
| Tsukuba Masina | West Africa Time | 08:00 |
| Tsukuba Saharanpur | India Standard Time | 03:30 |
| Tsukuba Gulbarga | India Standard Time | 03:30 |
| Tsukuba Bhātpāra | India Standard Time | 03:30 |
| Tsukuba Najaf | Arabian Time | 06:00 |
| Tsukuba Feira de Santana | Brasilia Time | 12:00 |
| Tsukuba Shah Alam | Malaysia Time | 01:00 |
| Tsukuba Mariupol' | Eastern European Time | 06:00 |
| Tsukuba Himeji | Japan Time | 00:00 |
| Tsukuba Tuxtla Gutiérrez | Central Time | 14:00 |
| Tsukuba Gomel | Moscow Time | 06:00 |
| Tsukuba Okene | West Africa Time | 08:00 |
| Tsukuba Uijeongbu-si | Korean Time | 00:00 |
| Tsukuba East London | South Africa Standard Time | 07:00 |
| Tsukuba Yazd | Iran Time | 04:30 |
| Tsukuba Hargeisa | East Africa Time | 06:00 |
| Tsukuba Siālkot | Pakistan Time | 04:00 |
| Tsukuba Kemerovo | Novokuznetsk Time | 02:00 |
| Tsukuba Yichang | China Time | 01:00 |
| Tsukuba Hwaseong-si | Korean Time | 00:00 |
| Tsukuba Kansas City | Central Time | 14:00 |
| Tsukuba Cuautitlán Izcalli | Central Time | 14:00 |
| Tsukuba Yinchuan | China Time | 01:00 |
| Tsukuba Skopje | Central European Time | 07:00 |
| Tsukuba Vereeniging | South Africa Standard Time | 07:00 |
| Tsukuba The Hague | Central European Time | 07:00 |
| Tsukuba Long Beach | Pacific Time | 16:00 |
| Tsukuba Mixco | Central Time | 15:00 |
| Tsukuba Lyon | Central European Time | 07:00 |
| Tsukuba Londrina | Brasilia Time | 12:00 |
| Tsukuba Mesa | Mountain Time | 16:00 |
| Tsukuba Jiaojiangcun | China Time | 01:00 |
| Tsukuba Matsudo | Japan Time | 00:00 |
| Tsukuba Juiz de Fora | Brasilia Time | 12:00 |
| Tsukuba Nishinomiya | Japan Time | 00:00 |
| Tsukuba Tula | Moscow Time | 06:00 |
| Tsukuba Borough of Staten Island | Eastern Time | 13:00 |
| Tsukuba Kawaguchi | Japan Time | 00:00 |
| Tsukuba Zunyi | China Time | 01:00 |
| Tsukuba Jiaxing | China Time | 01:00 |
| Tsukuba Belford Roxo | Brasilia Time | 12:00 |