| South Sioux City Guayaquil | Ecuador Time | 00:00 |
| South Sioux City Ordos | China Time | -13:00 |
| South Sioux City Sana'a | Arabian Time | -08:00 |
| South Sioux City Beirut | Eastern European Time | -08:00 |
| South Sioux City Perth | Western Australia Time | -13:00 |
| South Sioux City Sapporo | Japan Time | -14:00 |
| South Sioux City Jilin | China Time | -13:00 |
| South Sioux City Bucharest | Eastern European Time | -08:00 |
| South Sioux City Camayenne | Greenwich Mean Time | -05:00 |
| South Sioux City Indore | India Standard Time | -10:30 |
| South Sioux City Iztapalapa | Central Time | 01:00 |
| South Sioux City Ecatepec | Central Time | 01:00 |
| South Sioux City Conakry | Greenwich Mean Time | -05:00 |
| South Sioux City Maracay | Venezuela Time | -01:00 |
| South Sioux City Medan | Western Indonesia Time | -12:00 |
| South Sioux City Rawalpindi | Pakistan Time | -10:00 |
| South Sioux City Minsk | Moscow Time | -08:00 |
| South Sioux City Budapest | Central European Time | -07:00 |
| South Sioux City Mosul | Arabian Time | -08:00 |
| South Sioux City Hamburg | Central European Time | -07:00 |
| South Sioux City Curitiba | Brasilia Time | -02:00 |
| South Sioux City Warsaw | Central European Time | -07:00 |
| South Sioux City Bandung | Western Indonesia Time | -12:00 |
| South Sioux City Soweto | South Africa Standard Time | -07:00 |
| South Sioux City Vienna | Central European Time | -07:00 |
| South Sioux City Rabat | Western European Time | -05:00 |
| South Sioux City Guadalajara | Central Time | 01:00 |
| South Sioux City Barcelona | Central European Time | -07:00 |
| South Sioux City Pretoria | South Africa Standard Time | -07:00 |
| South Sioux City Aleppo | Eastern European Time | -08:00 |
| South Sioux City Montreal | Eastern Time | -01:00 |
| South Sioux City Manila | Philippine Time | -13:00 |
| South Sioux City Kunshan | China Time | -13:00 |
| South Sioux City Patna | India Standard Time | -10:30 |
| South Sioux City Bhopal | India Standard Time | -10:30 |
| South Sioux City Manaus | Amazon Time | -01:00 |
| South Sioux City Xinyang | China Time | -13:00 |
| South Sioux City Puebla | Central Time | 01:00 |
| South Sioux City Kaduna | West Africa Time | -06:00 |
| South Sioux City Phnom Penh | Indochina Time | -12:00 |
| South Sioux City Damascus | Eastern European Time | -08:00 |
| South Sioux City Philadelphia | Eastern Time | -01:00 |
| South Sioux City Phoenix | Mountain Time | 02:00 |
| South Sioux City Isfahan | Iran Time | -09:30 |
| South Sioux City Ludhiana | India Standard Time | -10:30 |
| South Sioux City Harare | Central Africa Time | -07:00 |
| South Sioux City Kobe | Japan Time | -14:00 |
| South Sioux City Bekasi | Western Indonesia Time | -12:00 |
| South Sioux City Kaohsiung | Taipei Time | -13:00 |
| South Sioux City Stockholm | Central European Time | -07:00 |