The deadline is June 9th. You can use the public comment app to locate Xi 'an and search for the keyword "Art Star", as shown in the figure below.

Click on the first search result "Yixing Medical Beauty Hospital" to enter the following page.

Find the "Special Activities" under the strokes, and click to enter the page as shown below.

Select and click "Star Powder Dream Festival" to enter the beauty pageant information introduction page, as shown in the figure below.

As you can see, the activity started on May 6th and ended on June 9th.