| Siheung-si Franklin Township | Eastern Time | 13:00 |
| Siheung-si Randburg | South Africa Standard Time | 07:00 |
| Siheung-si Fa Ham | Indochina Time | 02:00 |
| Siheung-si Lillois-Witterzée | Central European Time | 07:00 |
| Siheung-si Yandina | Eastern Australia Time | -01:00 |
| Siheung-si San Rafael | Central European Time | 07:00 |
| Siheung-si Saint Lucia | Eastern Australia Time | -01:00 |
| Siheung-si Lilburn | Eastern Time | 13:00 |
| Siheung-si Emu Plains | Eastern Australia Time | -01:00 |
| Siheung-si Ranakpur | India Standard Time | 03:30 |
| Siheung-si Eynsham | United Kingdom Time | 08:00 |
| Siheung-si Lierneux | Central European Time | 07:00 |
| Siheung-si Wayne | Eastern Time | 13:00 |
| Siheung-si San Ramon | Central Time | 15:00 |
| Siheung-si Ridgway | Eastern Time | 13:00 |
| Siheung-si Lieshout | Central European Time | 07:00 |
| Siheung-si Empuriabrava | Central European Time | 07:00 |
| Siheung-si Saint-Polycarpe | Eastern Time | 13:00 |
| Siheung-si Eyrarbakki | Greenwich Mean Time | 09:00 |
| Siheung-si Ladenburg | Central European Time | 07:00 |
| Siheung-si Waynesville | Eastern Time | 13:00 |
| Siheung-si San Vito al Tagliamento | Central European Time | 07:00 |
| Siheung-si Riedering | Central European Time | 07:00 |
| Siheung-si Lac-Drolet | Eastern Time | 13:00 |
| Siheung-si Enderby | Pacific Time | 16:00 |
| Siheung-si Saint-Rambert-d'Albon | Central European Time | 07:00 |
| Siheung-si Èze | Central European Time | 07:00 |
| Siheung-si Lac-Mégantic | Eastern Time | 13:00 |
| Siheung-si Wayville | Central Australia Time | -00:30 |
| Siheung-si San Vito Lo Capo | Central European Time | 07:00 |
| Siheung-si Saint Clairsville | Eastern Time | 13:00 |
| Siheung-si Kochi | India Standard Time | 03:30 |
| Siheung-si Enmore | Eastern Australia Time | -01:00 |
| Siheung-si Saint-Pierre-du-Mont | Central European Time | 07:00 |
| Siheung-si Exton | Eastern Time | 13:00 |
| Siheung-si Kochi | India Standard Time | 03:30 |
| Siheung-si Wayzata | Central Time | 14:00 |
| Siheung-si Saint-Aunès | Central European Time | 07:00 |
| Siheung-si Ridgefield | Eastern Time | 13:00 |
| Siheung-si Kodagu | India Standard Time | 03:30 |
| Siheung-si Engelberg | Central European Time | 07:00 |
| Siheung-si Saint-Pie | Eastern Time | 13:00 |
| Siheung-si Exeter | Eastern Time | 13:00 |
| Siheung-si Ko Samui | Indochina Time | 02:00 |
| Siheung-si Weaverville | Pacific Time | 16:00 |
| Siheung-si Saint Ann | Central Time | 14:00 |
| Siheung-si Ridgefield Park | Eastern Time | 13:00 |
| Siheung-si Chuo Ward | Japan Time | 00:00 |
| Siheung-si England | Eastern European Time | 06:00 |
| Siheung-si Saint-Paul-lès-Dax | Central European Time | 07:00 |