The Do Not Disturb feature on an iPhone allows you to silence notifications, calls, and alerts from making any noise, vibrating, or lighting up the phone screen when the screen is locked. This feature can be turned on or off manually or scheduled to turn on automatically at certain times of the day. When Do Not Disturb is activated, the icon, which looks like a crescent moon, will appear at the top of the iPhone screen in the status bar.

Do Not Disturb does not affect alarms, so any set alarms will still sound while Do Not Disturb is activated. Additionally, Do Not Disturb only has an effect when the phone screen is locked. When the phone is locked, its screen doesnt react to touch, but it can still receive texts, calls, and other notifications.

You can customize Do Not Disturb settings in various ways, such as setting contacts for whom the Do Not Disturb mode will not apply, customizing app notifications, and focus filters. You can also activate two types of exceptions to your Do Not Disturb: contact-based and frequency-based.