How long in advance to apply for a Japanese visa?

Legal subjectivity:

1. If you are applying for a Japanese work visa for business travel, there are two types of Japanese business visas. The first one is valid within three months. Single entry, and the other allows multiple entries within a year. The processing time for both business visas is generally within four to six working days. 2. Apply for a visa to visit friends in Japan. If you want to visit friends in Japan, you need to apply for a visa to visit relatives and friends in Japan. The time required to issue this visa is basically the same as that of a business visa, which is also four to six working days. Article 19 of the "Exit and Entry Administration Law of the People's Republic of China" If a foreigner applying for a visa needs to provide an invitation letter issued by an entity or individual in China, the applicant shall provide it in accordance with the requirements of the visa authority stationed abroad. The unit or individual that issues the invitation letter shall be responsible for the authenticity of the invitation content. The law is objective:

Article 9 of the "Passport and Visa Regulations of the People's Republic of China" stipulates that Chinese citizens and foreigners who go abroad for private matters or live abroad must apply for a Chinese visa when entering, entering or passing through China's borders. , the specific measures shall be implemented in accordance with relevant regulations. Chinese citizens traveling abroad on official business can enter and leave the country with a valid passport and do not need to apply for a Chinese entry-exit visa. Citizens of countries that have signed mutual visa exemption agreements with my country shall apply for visas according to the agreement. Article 10 There are three types of visas: diplomatic, official and ordinary. In principle, the visa-issuing authority will issue the corresponding visa according to the type of passport. However, if necessary, a visa different from the passport type can be issued.