Turn quiet hours/days
- Open the Teams app and click on the navigation menu on the top left.
- Click Notifications.
- Click on the bell icon under Block notifications identified as During quiet time in the middle of the screen.
After you click quite hours, you will have the option to turn it on and a separate option to turn on quiet days
- Once you turn on quiet hours, you can set the times you do not want to receive notifications.
Quite days also allows you to choose specific days to keep notifications off.
Schedule an out of office in settings
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Go to your profile picture in the top right of Teams. Next, select 
Settings > General and locate the Out of Office section.
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Select the Schedule button to open the out of office screen. Then follow steps 3 through 7 above to set your preferences.
To clear your out of office status and turn off your automatic reply in Teams, select your profile picture and go back to the Out of Office screen either from Settings > General > Out of Office or by selecting Set status message > Schedule out of office from your profile picture. Turn off the toggle next to Turn on automatic replies and select the Save button.
Once you've scheduled an out of office status and message in Teams, you'll see automatic replies turned on in Outlook with the time range and message you set in Teams. If you choose to update your out of office details in Outlook, your changes will be reflected in Teams. To learn how to turn on or off an Outlook out of office reply, see Send automatic out of office replies from Outlook.