| Siena Siping | China Time | -06:00 |
| Siena Kagoshima | Japan Time | -07:00 |
| Siena Surakarta | Western Indonesia Time | -05:00 |
| Siena Huai'an | China Time | -06:00 |
| Siena Bhavnagar | India Standard Time | -03:30 |
| Siena Mar del Plata | Argentina Time | 05:00 |
| Siena Bahawalpur | Pakistan Time | -03:00 |
| Siena Zāhedān | Iran Time | -02:30 |
| Siena Aden | Arabian Time | -01:00 |
| Siena Nanded | India Standard Time | -03:30 |
| Siena Orenburg | Yekaterinburg Time | -03:00 |
| Siena Pristina | Central European Time | 00:00 |
| Siena Changwon | Korean Time | -07:00 |
| Siena Jiamusi | China Time | -06:00 |
| Siena Antipolo | Philippine Time | -06:00 |
| Siena Neijiang | China Time | -06:00 |
| Siena Bremen | Central European Time | 00:00 |
| Siena Meknes | Western European Time | 02:00 |
| Siena Sharjah | Gulf Standard Time | -02:00 |
| Siena Banciao | Taipei Time | -06:00 |
| Siena Sargodha | Pakistan Time | -03:00 |
| Siena Bangui | West Africa Time | 01:00 |
| Siena Vilnius | Eastern European Time | -01:00 |
| Siena Cancún | Eastern Time | 07:00 |
| Siena Yangzhou | China Time | -06:00 |
| Siena Novokuznetsk | Novokuznetsk Time | -05:00 |
| Siena Kisangani | Central Africa Time | 00:00 |
| Siena Port Said | Eastern European Time | 00:00 |
| Siena Mersin | Turkey Time | -01:00 |
| Siena Warri | West Africa Time | 01:00 |
| Siena Guli | China Time | -06:00 |
| Siena Ebute Ikorodu | West Africa Time | 01:00 |
| Siena Taku | China Time | -06:00 |
| Siena Jiangmen | China Time | -06:00 |
| Siena Tucson | Mountain Time | 09:00 |
| Siena Nashville | Central Time | 07:00 |
| Siena Taif | Arabian Time | -01:00 |
| Siena Beira | Central Africa Time | 00:00 |
| Siena Guntur | India Standard Time | -03:30 |
| Siena Touba | Greenwich Mean Time | 02:00 |
| Siena Quebec City | Eastern Time | 06:00 |
| Siena Hamedan | Iran Time | -02:30 |
| Siena Cangzhou | China Time | -06:00 |
| Siena San Salvador | Central Time | 08:00 |
| Siena Santa María Chimalhuacán | Central Time | 08:00 |
| Siena Torreón | Central Time | 08:00 |
| Siena Dehradun | India Standard Time | -03:30 |
| Siena Cuiabá | Amazon Time | 06:00 |
| Siena Cuauhtémoc | Central Time | 08:00 |
| Siena Ciudad López Mateos | Central Time | 08:00 |