Classic: Assign Business Hours to Practitioners
Click Setup
In the Setup Search box, search for “Manage Users”.
Click on “Users”
Click on your user record
Click Edit
Set "Business Hours Name" under Additional Information
Click Save
Click Setup
In the Setup Search box, search for “Manage Users”.
Click on “Users”
Click on your user record
Click Edit
Set "Business Hours Name" under Additional Information
Click Save