When you're busy, use Do Not Disturb to mute ringtones for incoming calls, stop vibration, and block notifications.
Open quick settings and tap 
You'll see 
To change how long it stays on, in quick settings, touch & hold 
Open quick settings and tap 
If it's turning itself on again, but you don't want it to:

When Do Not Disturb is on, sound and vibration are muted. Alarms and media aren't muted by default, but you can mute them too.
To adjust settings for alarms, media, and touch sounds:


When Do Not Disturb is on, you won’t see or hear notifications by default. You can change settings to:
To change how Do Not Disturb handles notifications:
Do one of the following:
If Do Not Disturb is off and you expect but aren't getting notifications from an app, check your settings for the app's notifications.
When Do Not Disturb is on, incoming calls, messages, and calendar events or reminders are muted. You can allow exceptions.

Your phone can automatically switch into and out of Do Not Disturb mode, either based on your calendar events or on a schedule you create.

Do one of the following:

Adjust settings:

If you don't want your phone to switch automatically into and out of Do Not Disturb:
Do any of the following:


