| Siheung-si Pfarrkirchen | Central European Time | 08:00 |
| Siheung-si Summerland | Pacific Time | 17:00 |
| Siheung-si Sendra | India Standard Time | 03:30 |
| Siheung-si Bengaluru | India Standard Time | 03:30 |
| Siheung-si Alverca do Ribatejo | Western European Time | 09:00 |
| Siheung-si Forte da Casa | Western European Time | 09:00 |
| Siheung-si Sturgis | Mountain Time | 16:00 |
| Siheung-si Castellamonte | Central European Time | 08:00 |
| Siheung-si Pha Sing | Indochina Time | 02:00 |
| Siheung-si Sullivan | Central Time | 15:00 |
| Siheung-si Senegal | Peru Time | 14:00 |
| Siheung-si Bengaluru | India Standard Time | 03:30 |
| Siheung-si Anna Maria | Eastern Time | 14:00 |
| Siheung-si Forth | Eastern Australia Time | -02:00 |
| Siheung-si Štúrovo | Central European Time | 08:00 |
| Siheung-si Chotebor | Central European Time | 08:00 |
| Siheung-si Prosser | Pacific Time | 17:00 |
| Siheung-si Sullivan City | Central Time | 15:00 |
| Siheung-si Santa Catarina | Central Time | 15:00 |
| Siheung-si Bengaluru | India Standard Time | 03:30 |
| Siheung-si Ankola | India Standard Time | 03:30 |
| Siheung-si El Poble Nou de Benitatxell | Central European Time | 08:00 |
| Siheung-si Subang | Western Indonesia Time | 02:00 |
| Siheung-si Castelsardo | Central European Time | 08:00 |
| Siheung-si Providencia | Chile Time | 12:00 |
| Siheung-si Sullivan's Island | Eastern Time | 14:00 |
| Siheung-si Santa Ana | Central Time | 15:00 |
| Siheung-si Bengaluru | India Standard Time | 03:30 |
| Siheung-si Anna's Retreat | Atlantic Time | 13:00 |
| Siheung-si El Pont d'Armentera | Central European Time | 08:00 |
| Siheung-si Subiaco | Western Australia Time | 01:00 |
| Siheung-si Casselman | Eastern Time | 14:00 |
| Siheung-si Provincetown | Eastern Time | 14:00 |
| Siheung-si Suitland-Silver Hill | Eastern Time | 14:00 |
| Siheung-si Santa Ana | Mexican Pacific Time | 16:00 |
| Siheung-si Bengaluru | India Standard Time | 03:30 |
| Siheung-si Annandale | Eastern Australia Time | -02:00 |
| Siheung-si El Rodadero | Colombia Time | 14:00 |
| Siheung-si Suan Dok | Indochina Time | 02:00 |
| Siheung-si Castanet-Tolosan | Central European Time | 08:00 |
| Siheung-si Progreso | Eastern Time | 14:00 |
| Siheung-si Sujapur | India Standard Time | 03:30 |
| Siheung-si Sant Miquel de Campmajor | Central European Time | 08:00 |
| Siheung-si Benjamín Hill | Mexican Pacific Time | 16:00 |
| Siheung-si Asolo | Central European Time | 08:00 |
| Siheung-si El Tablero | Western European Time | 09:00 |
| Siheung-si Stuttgart | Central Time | 15:00 |
| Siheung-si Cassis | Central European Time | 08:00 |
| Siheung-si Progreso | Central Time | 15:00 |
| Siheung-si Teriang | Malaysia Time | 01:00 |