* Monday to Friday from 8: 30am to12: 00pm.
* Spring and Autumn 14:30 to18: 00; Winter afternoon 14:00 to17: 30; Summer afternoon: 15:00 to 18:30.
On Saturdays, Sundays and holidays, Taiyuan Gas Company will have IC card sales and maintenance personnel on duty, and there will be 24-hour staff in the business halls of each jurisdiction.