The process of obtaining a Certificate Authority (CA) license in China is regulated by the Ministry of Industry and Information Technology (MIIT). According to the information available, the duration for getting a CA license in China can vary, but here's a general idea based on the search results:

1. Application Process: The application for a CA license involves submitting necessary information and supporting documents to the local Communication Administrations under MIIT . The processing timeline can take approximately 7-10 business days for all documentation to be complete .
2. Processing Time: After the official filing of the application, it typically takes about 20 business days for the processing of the ICP application, which is a prerequisite for operating as a CA in China . However, this time frame can vary depending on the specific circumstances and the efficiency of the processing agency.
3. Additional Considerations: It's important to note that the application process and all documentation must be entirely in Chinese, which can be a significant barrier for foreign companies . Additionally, the requirements for an ICP Commercial License, which is necessary for companies looking to generate income from their site, are more thorough and can take longer due to additional scrutiny .