How to set the screen time of mobile phone?

How to set the bright screen time of the mobile phone;

Mobile phone model: Redmi K30

System version: MIUI 13

Locate the settings on the phone desktop, and then click:

Enter the phone settings page, find the lock screen, and click:

Enter the mobile phone lock screen page to find the automatic lock screen, and click:

In the pop-up page, you can set it according to your actual situation:

I hope the above methods will help your friends!