The exam in Xinxiang, Henan, typically follows the national schedule for China's college entrance examination, known as the Gaokao. The Gaokao is usually held in early June each year. For instance, in 2023, the Gaokao was scheduled for June 7th and 8th. However, the exact dates can vary slightly from year to year, and it is essential to check the official announcements from the Henan Provincial Education Department for the most accurate information.

The reason for the early June timing is rooted in the educational calendar of China. The academic year in China typically runs from September to July, with a summer vacation from July to August. This schedule allows students to complete their final year of high school and prepare for the Gaokao during the summer months. The early June dates also ensure that the results are available before the beginning of the new academic year in September.

Data from previous years show that the Gaokao has been consistently held in early June. For example, in 2022, the exam took place from June 7th to 10th. The consistent timing of the exam is part of the Chinese education system's effort to standardize the process and ensure fairness across the country. The Henan Provincial Education Department, which is responsible for the administration of the Gaokao in the province, adheres to this national schedule, making it easier for students and parents to plan their preparation and exam schedules.

In conclusion, the exam in Xinxiang, Henan, is generally held in early June, following the national Gaokao schedule. This timing is in line with the Chinese educational calendar and is designed to provide students with ample time to prepare for one of the most important exams of their lives.