How many days in advance can the train ticket from Zhuzhou to Ningbo be sold?

K 1246/K 1247 Zhuzhou-Ningbo East 1 1:34- The air conditioning was fast at 05:02 the next day, 17 hours and 28 minutes,11.

K846/K847 Zhuzhou-Ningbo East12: 38-04: 10 air-conditioned express train 15 hours and 32 minutes 1087 km hard seat 140 hard sleeper 257 soft seat 22/KLOC-0.

K582/K583 Zhuzhou-Ningbo East16:14-06: 10 air-conditioned express train 13 hours and 56 minutes 1087 km hard seat 140 hard sleeper 257 soft seat 22

K42 1/K424 Zhuzhou-Ningbo East17: 48-06:40 the next day, air conditioning speed12h52 minutes1087km, hard seat 140, soft seat 257, soft seat 22.

K2 10/K2 1 1 Zhuzhou-Ningbo East 23:08- the next day 14:23 air-conditioned express 15 hours14/kloc-0.