| Siheung-si Goiânia | Brasilia Time | 12:00 |
| Siheung-si Guarulhos | Brasilia Time | 12:00 |
| Siheung-si Prague | Central European Time | 08:00 |
| Siheung-si Varanasi | India Standard Time | 03:30 |
| Siheung-si Copenhagen | Central European Time | 08:00 |
| Siheung-si Sofia | Eastern European Time | 07:00 |
| Siheung-si Tripoli | Eastern European Time | 07:00 |
| Siheung-si Port Harcourt | West Africa Time | 08:00 |
| Siheung-si Hiroshima | Japan Time | 00:00 |
| Siheung-si Lijiang | China Time | 01:00 |
| Siheung-si Dubai | Gulf Standard Time | 05:00 |
| Siheung-si Samara | Samara Time | 05:00 |
| Siheung-si Omsk | Omsk Time | 03:00 |
| Siheung-si Benin City | West Africa Time | 08:00 |
| Siheung-si Monterrey | Central Time | 15:00 |
| Siheung-si Malingao | Philippine Time | 01:00 |
| Siheung-si Baku | Azerbaijan Time | 05:00 |
| Siheung-si Leon | Central Time | 15:00 |
| Siheung-si Maiduguri | West Africa Time | 08:00 |
| Siheung-si Kazan | Moscow Time | 06:00 |
| Siheung-si Yerevan | Armenia Time | 05:00 |
| Siheung-si Amritsar | India Standard Time | 03:30 |
| Siheung-si Ouagadougou | Greenwich Mean Time | 09:00 |
| Siheung-si Yono | Japan Time | 00:00 |
| Siheung-si Rostov-on-Don | Moscow Time | 06:00 |
| Siheung-si Allahabad | India Standard Time | 03:30 |
| Siheung-si Goyang-si | Korean Time | 00:00 |
| Siheung-si Gaziantep | Turkey Time | 06:00 |
| Siheung-si Visakhapatnam | India Standard Time | 03:30 |
| Siheung-si Sendai | Japan Time | 00:00 |
| Siheung-si Chelyabinsk | Yekaterinburg Time | 04:00 |
| Siheung-si Datong | China Time | 01:00 |
| Siheung-si Tbilisi | Georgia Time | 05:00 |
| Siheung-si Changshu City | China Time | 01:00 |
| Siheung-si Taichung | Taipei Time | 01:00 |
| Siheung-si Theni | India Standard Time | 03:30 |
| Siheung-si Xianyang | China Time | 01:00 |
| Siheung-si Ufa | Yekaterinburg Time | 04:00 |
| Siheung-si Dnepropetrovsk | Eastern European Time | 07:00 |
| Siheung-si Seongnam-si | Korean Time | 00:00 |
| Siheung-si Campinas | Brasilia Time | 12:00 |
| Siheung-si Jabalpur | India Standard Time | 03:30 |
| Siheung-si Howrah | India Standard Time | 03:30 |
| Siheung-si Huainan | China Time | 01:00 |
| Siheung-si San Jose | Pacific Time | 17:00 |
| Siheung-si Donetsk | Eastern European Time | 07:00 |
| Siheung-si Dublin | Ireland Time | 09:00 |
| Siheung-si Calgary | Mountain Time | 16:00 |
| Siheung-si Brussels | Central European Time | 08:00 |
| Siheung-si Aurangabad | India Standard Time | 03:30 |