Windows 10 has an administrative feature you can use to limit screen time for any account. This feature has the following limitations:
- It only works on the hour. You have to say 9am-5pm, not 09:30-17:30
- It only works on the login screen. So if the user is already logged in, it won’t stop them working until their screen locks
To use the feature, you’ll need to be running an account with administrator privileges – then take the following steps:
- Type ‘Windows Key + x’ and choose ‘Windows PowerShell (Admin)’ from the menu.
- Answer ‘Yes’ to the User Account Control popup.
- Type ‘
cmd‘ at the prompt and then Enter key (type Enter after all of the commands below) - Type ‘
net user‘ at the new prompt to list all of the users on your machine - Type ‘
net user username1 /time:M-T,09:00-17:00;W,09:00-20:00;F-Sa,09:00-18:00‘ (for example) to limit times Monday to Saturday, with no time allowed on Sunday. - Exit
- Exit (Blue PowerShell window should close)
The syntax for this command is documented quite widely on the Internet – see for example https://ss64.com/nt/netuseroptions.html