| Siheung-si Visakhapatnam Port | India Standard Time | 03:30 |
| Siheung-si Badia Tedalda | Central European Time | 07:00 |
| Siheung-si Sepang | Malaysia Time | 01:00 |
| Siheung-si Selayang | Malaysia Time | 01:00 |
| Siheung-si Amory | Central Time | 14:00 |
| Siheung-si Avalon | Pacific Time | 16:00 |
| Siheung-si Hérémence | Central European Time | 07:00 |
| Siheung-si Selinsgrove | Eastern Time | 13:00 |
| Siheung-si Uintah | Mountain Time | 15:00 |
| Siheung-si Aoulouz | Western European Time | 08:00 |
| Siheung-si Seseña Nuevo | Central European Time | 07:00 |
| Siheung-si Selah | Pacific Time | 16:00 |
| Siheung-si Ampang | Malaysia Time | 01:00 |
| Siheung-si Autreppe | Central European Time | 07:00 |
| Siheung-si Heringsdorf | Central European Time | 07:00 |
| Siheung-si Selangor | Malaysia Time | 01:00 |
| Siheung-si Ujire | India Standard Time | 03:30 |
| Siheung-si Aougrout | Central European Time | 08:00 |
| Siheung-si Serranópolis | Brasilia Time | 12:00 |
| Siheung-si Seixal | Western European Time | 08:00 |
| Siheung-si Amorbach | Central European Time | 07:00 |
| Siheung-si Australia Landing | Central Time | 14:00 |
| Siheung-si Herodsfoot | United Kingdom Time | 08:00 |
| Siheung-si Segur de Calafell | Central European Time | 07:00 |
| Siheung-si Ukai | India Standard Time | 03:30 |
| Siheung-si Anzola dell'Emilia | Central European Time | 07:00 |
| Siheung-si Seri Gading | Malaysia Time | 01:00 |
| Siheung-si Pulaski | Eastern Time | 13:00 |
| Siheung-si Ammon | Mountain Time | 15:00 |
| Siheung-si Authoor | India Standard Time | 03:30 |
| Siheung-si Hemmadi | India Standard Time | 03:30 |
| Siheung-si Pulau Carey | Malaysia Time | 01:00 |
| Siheung-si Ulcinj | Central European Time | 07:00 |
| Siheung-si Ao Nang | Indochina Time | 02:00 |
| Siheung-si Seri Kembangan | Malaysia Time | 01:00 |
| Siheung-si Pukalani | Hawaii-Aleutian Time | 19:00 |
| Siheung-si Andergrove | Eastern Australia Time | -01:00 |
| Siheung-si Audubon | Eastern Time | 13:00 |
| Siheung-si Hendersonville | Eastern Time | 13:00 |
| Siheung-si Pukekohe | New Zealand Time | -03:00 |
| Siheung-si Town of Rockingham | Eastern Time | 13:00 |
| Siheung-si Aoba Ward | Japan Time | 00:00 |
| Siheung-si Seri Manjung | Malaysia Time | 01:00 |
| Siheung-si Punchbowl | Eastern Australia Time | -01:00 |
| Siheung-si Anderlecht | Central European Time | 07:00 |
| Siheung-si Auchenflower | Eastern Australia Time | -01:00 |
| Siheung-si Henndorf am Wallersee | Central European Time | 07:00 |
| Siheung-si Revesby | Eastern Australia Time | -01:00 |
| Siheung-si Umhlanga | South Africa Standard Time | 07:00 |
| Siheung-si Aoi Ward | Japan Time | 00:00 |