https://wccftech.com/china-restricts-online-gaming-play-for-minors-to-one-hour-on-fridays-saturdays-sundays-and-holidays/

Today, China announced through its national Press and Publication Administration (via Xinhua, the official state-run press agency) a major restriction of online gaming play for minors. Back in November 2019, the restrictions forced underage gamers to play one hour and a half on weekdays and three hours on weekends and holidays.

The new limitations are far harsher. Minors will only get to play for one hour between 8 pm and 9 pm local time on Fridays, Saturdays, Sundays, and holidays. From the notice, which we've translated below via DeepL, it seems like they won't be able to access online games at all during weekdays.