At the beginning of April 2023. According to the query of Nanning Education official website, it can be seen that the second model test in Nanning, Guangxi in 2023 was unified in the whole city, and the time was in early April 2023. The second mode is the second mock exam before the third middle school entrance examination. The purpose of this exam is to give candidates a more formal mock exam before the senior high school entrance examination, so that candidates can adapt to the senior high school entrance examination.