Can I change the time after Zhaopin agrees to the interview?

Of course. According to the relevant information of Zhaopin, Zhaopin can change the time after the interview, which is understandable. HR also looked for a job, but on the day you didn't go for an interview, someone just found the right person. You'd better call again to ask if the position is still vacant after you change the time, so as not to make a trip in vain.