Here’s how workspace owners and admins can set default DND hours:

1. From your desktop, click your workspace name in the top left.
   
2. Select Administration, then Workspace settings from the menu.
3. Scroll down to Do not disturb and click Expand.
4. Select the default hours when notifications will not go out to members. This change will affect all members of your workspace.
5. Click Save settings once you’ve finished!

Individual workspace level

Here’s how workspace owners and admins can set default DND hours:

1. From your desktop, click your workspace name in the top left.
   
2. Select Administration, then Workspace settings from the menu.
3. Scroll down to Do not disturb and click Expand.
4. Select the default hours when notifications will not go out to members. This change will affect all members of your workspace.
5. Click Save settings once you’ve finished!

Enterprise Grid organisation level

Here’s how org owners and admins can set default DND hours for all workspaces connected to the Enterprise Grid organisation:

1. From your desktop, sign in to your Slack Enterprise Grid, then click Manage organisation.
2. Under    Settings, click Organisation policies.
3. Next to Do not disturb mode, click Add policy.
4. Tick the box next to Automatically disable notifications from and select the default hours when notifications will not go out to members of your org. This change will affect all members in your org.
5. Click Save policy.