The railways in China, like everywhere else, operate on a 24-hour system. During the Spring Festival Peak Travel Season, train frequencies will increase, and along with that, stations will see more passengers. Some trains will depart after midnight (24:00; or 00:00 the next day).
It is recommended that passengers travelling on trains departing after midnight (eg between 00:00 and 06:00) arrive at stations early — ideally the night before — so to avoid missing your train.
Passengers travelling on night trains are advised to be ready and to arrive at stations early.