 With the schedule change planned for 2012-12-21, some of these trainsets will be re-purposed to also provide overnight high-speed service between Shanghai and Xi'an North.In the 2014, Chunyun season, overnight HSR trains first ran on Beijing-Guangzhou (Jingguang) and other lines.In November 2016, CRRC Changchun unveiled CRH5E bullet train carriages with sleeper berths.