How long can I appeal if I lose in the first instance and the second instance?

Usually within six months. The right of appeal is a basic right given to citizens by our constitution. It refers to the citizen's right to lodge a complaint with the state organ and ask for a new handling of the official handling behavior of any state organ and its staff who violate their legitimate rights and interests.

Criminal appeal is the concrete embodiment of this right of appeal in criminal proceedings. There is no time limit for criminal complaint, that is, the criminal procedure law does not stipulate the time limit for the complainant to file a criminal complaint. No matter how long the case is handled, the complainant can file a criminal complaint. As long as the criminal complaint falls within the jurisdiction of the people's procuratorate, the people's procuratorate shall accept it and shall not refuse to accept it on the grounds that the time limit has expired. In civil proceedings, the parties applying for retrial shall file the application within two years after the judgment or ruling becomes legally effective. The purpose is to urge the parties to actively exercise their right to apply for retrial. If the time interval between the application for retrial and the effective date of the original judgment or ruling is too long, it will bring many disadvantages to the retrial work. However, the people's courts and people's procuratorates are not restricted by the expectation of applying for retrial.

If you refuse to accept the judgment of the second instance, will the judgment of the first instance be changed?

Specific analysis of the specific situation, whether to change the sentence is decided by the judge according to the facts of the investigation and the judgment of the first instance, and it can be changed or not. The decisive factor affecting the revision of the sentence is the fact. As for the procedural errors, these have no influence on the judgment.

I hope the above content can help you. If in doubt, please consult a professional lawyer.

Legal basis:

Article 375 of the Criminal Procedure Law of People's Republic of China (PRC)

A decision on an appeal submitted for review shall be made within three months, not later than six months.

Article 7 of the Provisions of the Supreme People's Procuratorate on Several Issues Concerning Handling Appeal Cases against the Effective Criminal Judgment of the People's Court.

After the review of the appeal of the legally effective criminal judgment or ruling of the people's court is completed, a Notice of Review of Criminal Appeal shall be made and delivered to the complainant within ten days.