Early July. According to the information from official website of Zhangye Education Bureau, the summer vacation time of primary and middle school students in Zhangye City is in early July. Zhangye city, known as Ganzhou in ancient times, is a prefecture-level city under the jurisdiction of Gansu Province, located in the northwest of Gansu Province and in the middle of Hexi Corridor. As of June 26th, 2023, there were 5 counties in 1 district in Zhangye City.