When does Xi 'an International Studies University pay tuition every year?

Spring semester before March 15, autumn semester before September 15. According to the official website of Xi 'an International Studies University, tuition fees must be paid before March 15 and September 15 every year. Xi International Studies University, referred to as "Xida University" or "Xida University", is located in Xi City, Shaanxi Province. It is one of the earliest four foreign language colleges established in New China, and it is also the only institution of higher learning with complete professional foreign languages in Northwest China.