Is it common for college students to sign contracts on the spot after the job fair? Do you want to consider the time?

Generally, labor contracts are not signed on the spot. Of course, there may be individual cases, such as special job fairs on campus, but this is rare.

I work in the human resources department. In the coastal areas where the implementation of labor law is relatively in place, I will sign a labor contract with new employees within three days after I join the company. In the Mainland, some units will sign labor contracts after the probation period when the implementation of labor laws and regulations is not perfect.

No matter what happens, in fact, labor contracts protect workers, and this principle will not change. Even the labor contract concluded by the enterprise itself will be invalid once it conflicts with the national labor laws and regulations.

According to your situation, you can choose with confidence, but in the case of successful application, you should tell the enterprise how long you will give a reply, which is also your professionalism. If you can't go to work on the specified date, or choose another company, you'd better inform the last company, which is also your professionalism.