July 3 1.

The summer vacation begins on September 3rd and lasts for 35 days.

Extended content:

University summer vacation time in 2023:

Dalian polytechnic university has a holiday on August 2nd, and its summer vacation begins on August 29th. The summer vacation lasts for 28 days.

Nanjing University has a holiday on August 2, and the summer vacation starts on August 29, with a total of 28 days.

The holiday time of Southwest University is July 12, and the summer vacation starts on August 8, with a total of 28 days.

The holiday time of Guizhou University is August 2nd, the start time of summer vacation is August 3rd1day, and the summer vacation lasts for 30 days.

The holiday time of China University of Political Science and Law is July 3 1, and the summer vacation begins on August 29, lasting for 30 days.

Tongji University has a holiday on July 10, and the summer vacation begins on September 5 and lasts for 23 days.

Nanjing Institute of Media and Communication has a holiday in August 1. The summer vacation begins on September 5th and lasts for 36 days.

The holiday time of Peking University is July 5th, and the summer vacation begins on August 8th, with 35 days.

The holiday time of Chongqing University is July 26th, the summer vacation starts on August 29th and lasts for 35 days.

The holiday time of Southeast University is August 2nd, the summer vacation starts on September 5th and lasts for 35 days.

Yan 'an University had a holiday on July 19, and the summer vacation began on August 27th, lasting 40 days.

The holiday time of Heilongjiang University is July 12, and the summer vacation begins on August 20, with a duration of 40 days.

The holiday time of Xi Jiaotong University is August 2nd, the start time of summer vacation is September12nd, and the summer vacation lasts for 42 days.

Northeastern University has a holiday on July 25th, and the summer vacation begins on September 4th and lasts for 42 days.

The holiday time of Yantai University is July 19, and the summer vacation begins on August 29th, lasting for 42 days.

The holiday time of Changchun Normal University is July 17, and the summer vacation begins on August 29th, lasting for 44 days.

The holiday time of Sun Yat-sen University is July 15, and the summer vacation starts on August 28th, with a total of 45 days.

The holiday time of South University of Science and Technology is June 2 1, and the summer vacation begins on September 5, with a total of 77 days.

The holiday time of Shenzhen University is July 12, the start time of summer vacation is August 3 1, and the duration of summer vacation is 5 1 day.

The holiday time of Shanghai University is July 19, and the summer vacation starts on September 5, with a total of 49 days.