Shut out incoming distractions when you start a FocusTime session. This recipe will silence your phone (including vibration) when a FocusTime session starts. You can use a separate recipe to turn your ringer back on when the FocusTime session expires.
Then
Mute ringtone
This action will mute your Android device's ringtone. If your device is already muted, it will remain muted.
Explore more great ways to automate RescueTime and Android Device