Core Points - The railway department has optimized and adjusted the ticket sale times for 99 stations, reducing the interval from 30 minutes to 15 minutes and increasing the number of sale time points from 21 to 41 [1] Ticket Sale Time Adjustments - For example, at Beijing South Station, the ticket sale time has been adjusted from 12:30 PM to 12:45 PM daily [3][6] Ticket Purchase and Services - The railway 12306 App provides various services including ticket purchase, refunds, and changes, available for information queries and refunds 24/7, with ticket sales and changes available from 5:00 AM to 1:00 AM the next day, except on Tuesdays when it is available until midnight [7] - During peak travel periods, users can utilize the ticket waiting list feature to increase their chances of successful purchases, with the latest order fulfillment deadline being 20 minutes before departure [10] - Each user can hold up to 6 pending waiting list orders, with a maximum of 3 travel dates per order, totaling no more than 60 train trips and allowing for 9 passengers [12] Special Services - Special priority passengers can submit requests online up to 6 hours before departure, or in person at the station up to 60 minutes before the train's departure [14] - The app also allows users to check train delays and arrivals for the past hour and the next three hours, which is essential for planning travel time [14] Electronic Invoicing - Passengers can apply for electronic invoices within 180 days after their journey, following the payment of any refund or change fees [17][20] Online Dining Services - Passengers can order meals online, but must select a delivery station and adhere to the cutoff time for orders, which is 60 minutes before the train departs [20][21] Customer Support - Passengers are advised to use the official railway 12306 App for ticket purchases and can contact customer service for any issues encountered during the process [25]