Three days or a week. According to official website of Tianjin Education Bureau, as of August 15, 2023, the training of Tianjin 4050 is three days or a week, which is difficult and takes a long time. The training content is aimed at the problem that middle-aged people find it difficult to find jobs. 4050 training is aimed at major enterprises, laid-off workers and post-40 s and post-50 s personnel.