Instructions

When "Do Not Disturb" is turned on, calls, messages, and notifications will be
muted except for alarm clock, countdown timer, and alerts that you previously
permit. A warning-moon-shaped symbol will show up in the status bar.
You can choose to turn on the "Do Not Disturb" manually or automatically.
In the Auto-on mode, you can choose the time not to be disturbed or the
content allowed to show up.