Why should the posts in Zhaopin be published? Some show "today" and some show "just now". . What's going on here?

"Just now" refers to "information released within two hours" and "today" refers to information released today but not just released.

Zhaopin, the first high-end human resources magazine named Chief Talent Officer in China, is a professional service organization with talent service license and labor dispatch license issued by the government. By the end of 2011,the average daily page views in Zhaopin.com were 68 million, and the average daily online users exceeded 2.55 million. There are nearly 38 million resumes in the resume database, and more than 30,000 resumes are added every day. Individual users can add, modify, delete and hibernate resumes at any time to ensure the timeliness of resume database.