| Siheung-si Kawasaki | Japan Time | 00:00 |
| Siheung-si South Tangerang | Western Indonesia Time | 02:00 |
| Siheung-si Baotou | China Time | 01:00 |
| Siheung-si Dallas | Central Time | 15:00 |
| Siheung-si Medina | Arabian Time | 06:00 |
| Siheung-si Yaoundé | West Africa Time | 08:00 |
| Siheung-si Bamako | Greenwich Mean Time | 09:00 |
| Siheung-si Nashik | India Standard Time | 03:30 |
| Siheung-si Semarang | Western Indonesia Time | 02:00 |
| Siheung-si Brazzaville | West Africa Time | 08:00 |
| Siheung-si Pimpri | India Standard Time | 03:30 |
| Siheung-si Nizhny Novgorod | Moscow Time | 06:00 |
| Siheung-si Amman | Eastern European Time | 07:00 |
| Siheung-si Budta | Philippine Time | 01:00 |
| Siheung-si Belgrade | Central European Time | 08:00 |
| Siheung-si Montevideo | Uruguay Time | 12:00 |
| Siheung-si Lusaka | Central Africa Time | 07:00 |
| Siheung-si Xuchang | China Time | 01:00 |
| Siheung-si Kalyan | India Standard Time | 03:30 |
| Siheung-si Thane | India Standard Time | 03:30 |
| Siheung-si Munich | Central European Time | 08:00 |
| Siheung-si Ra’s Bayrūt | Eastern European Time | 07:00 |
| Siheung-si Shiraz | Iran Time | 05:30 |
| Siheung-si Adana | Turkey Time | 06:00 |
| Siheung-si Suwon | Korean Time | 00:00 |
| Siheung-si Milan | Central European Time | 08:00 |
| Siheung-si Port-au-Prince | Eastern Time | 14:00 |
| Siheung-si Ciudad Nezahualcóyotl | Central Time | 15:00 |
| Siheung-si Adelaide | Central Australia Time | -01:30 |
| Siheung-si Meerut | India Standard Time | 03:30 |
| Siheung-si Nowrangapur | India Standard Time | 03:30 |
| Siheung-si Faridabad | India Standard Time | 03:30 |
| Siheung-si Peshawar | Pakistan Time | 04:00 |
| Siheung-si Davao City | Philippine Time | 01:00 |
| Siheung-si Mandalay | Myanmar Time | 02:30 |
| Siheung-si Omdurman | Central Africa Time | 07:00 |
| Siheung-si Yueyang | China Time | 01:00 |
| Siheung-si Santiago De Los Caballeros | Atlantic Time | 13:00 |
| Siheung-si Anshan | China Time | 01:00 |
| Siheung-si Xuzhou | China Time | 01:00 |
| Siheung-si Ghaziabad | India Standard Time | 03:30 |
| Siheung-si Depok | Western Indonesia Time | 02:00 |
| Siheung-si Saitama | Japan Time | 00:00 |
| Siheung-si Gustavo Adolfo Madero | Central Time | 15:00 |
| Siheung-si Dombivli | India Standard Time | 03:30 |
| Siheung-si Maputo | Central Africa Time | 07:00 |
| Siheung-si Fuzhou | China Time | 01:00 |
| Siheung-si Rajkot | India Standard Time | 03:30 |
| Siheung-si Rosario | Argentina Time | 12:00 |
| Siheung-si Guiyang | China Time | 01:00 |