Use APKPure App
Get Glance - Always On Display old version APK for Android
Questo dimostra orologio dopo spento lo schermo della periferica
You can see clock on center of phone after screen off
If you want Unlock your phone, you can just 'Long Press' Any where in the screen
This app is suggest for AMOLED - display device.
It works when your phone's locked, it shows you a clock on screen, just like Glance function.
Okay, than just ENJOY