Is there any subway between Jiangsu University and Zhenjiang City?

Jiangsu University is located at No. 301, Xuefu Road, Zhenjiang City. Are you going to the downtown area? There is no subway available in the city. You can take bus line 16 to the city proper from North Gate of the campus. The trip takes about 30 to 40 minutes. The fare is CNY 1.

How far it is from Campus gate to Zhenjiang Bullet Train station ? And how much time bus will take?
These buses run 24/7 ?

Well, both Zhenjiang Railway Station and South Railway Station are the bullet train stations.
To the Main Railway Station, take bus no.213 and get off at Wanda Plaza. Then walk northwest around 450 yards (410 meters). The distance is about 5.5 miles. The operating hours are from 6:00-18:00.
To South Railway Station, take bus no.K208 to get to there directly. The distance is about 9 miles. It serves from 06:00 to 18:00.