Core Points - The Chinese National Railway Group has optimized the ticket sales start times for 99 major train stations, effective from June 7 [1] - The ticket sales can now be made 15 days in advance, with the start times adjusted to improve passenger experience [1] - The number of ticket sales start times has increased from 21 to 41, allowing for more frequent purchasing opportunities [1] Group 1 - The ticket sales start times have been adjusted to 15-minute intervals instead of the previous 30-minute intervals, maintaining the daily window from 8 AM to 6 PM [1] - Major stations such as Nanjing, Nanchang, and Shanghai Hongqiao have specific new start times, enhancing the distribution of ticket sales [1] - This adjustment aims to balance ticket purchasing demand and improve the processing capacity of the railway ticketing system during peak times [1] Group 2 - Passengers can check the specific ticket sales start times for the 99 stations through the railway 12306 website, app, and station announcements [2] - Other stations not included in this adjustment will retain their original ticket sales start times [2]