Yes, but the new employer will have questions. New employers usually use the resignation certificate to determine the working hours of workers.

I suggest you say that one year's work includes the previous internship, and the next three months will be official. When I explained, I said that my previous job was an internship, not a formal job, and the next three months would be a formal job.

Or change the date on your resume. If the resume has been delivered, find a reason, which can be said to be the date on the resume.

According to the Labor Contract Law

Article 8 When employing workers, the employing unit shall truthfully inform the workers of their work contents, working conditions, workplace, occupational hazards, conditions for safe production, labor remuneration and other information required by the workers;

The employer has the right to know the basic information directly related to the labor contract, and the employee shall truthfully explain it.

According to the Regulations for the Implementation of the Labor Contract Law

Article 24 The certificate of dissolution or termination of the labor contract issued by the employing unit shall specify the term of the labor contract, the date of dissolution or termination of the labor contract, the post and the working years in the unit.

Extended materials:

The resignation certificate should be issued after leaving the company.

Article 50 of the Labor Contract Law stipulates that the employer shall issue a certificate of dissolution or termination of the labor contract when dissolving or terminating the labor contract, and go through the formalities of transferring the relationship between files and social insurance for the employee within 15 days.

Article 89 also stipulates the legal liability you should bear if you don't issue a certificate. You can apply to the employer for a resignation certificate when you go through the resignation formalities.