1. Open the settings, click the Healthy Tablet option, and then open the screen time management. You can choose whether the user thinks this is my tablet or this is a child's tablet, and choose the latter. 2. After clicking, you can set the use time, set the children's sleep time, screen time management password and password protection. 3. After the setting is completed, you can also click an application in the application restriction option and click Open to restrict use. Then set the usage time of the application. 4. You can also open the Children's Park application on the tablet, click Enter Settings, and enter the security password to prevent children from quitting the Children's Park and secretly playing other applications. You can also set relevant restrictions and protection for children according to time management, vision protection and other options. 1. Click "Settings" to enter the setting interface. Step 2 slide down. Finally, click "System and Update" to enter the setting interface of system and update. 3. Click "Date and Time" to enter the date and time setting interface. 4. Then click the time to set the usage time limit. Just set the time limit you need and confirm it. 5. Then return to the main interface and you can see your settings.