College: 6 years, some colleges have a 3-year system, but it takes two years for the college to apply for graduate students.
After graduating from college, graduate students can apply at any time and register every year 10. The general postgraduate education system is 2-3 years. You can also take an in-service postgraduate exam after work.
Foreign graduate students are in transitional education, and the common academic system is 8 months, 1 year, etc. A few years ago, our country went abroad to study, and quite a few universities changed the academic system to two years! However, in recent two or three years, due to the lack of schooling and poor employment, most schools have brought order out of chaos and changed back to the 2.5-year and 3-year academic system.