Why would a macbook automatically boot up at the same time every night even though it was shutdown by a user?
How can I disable automatic boots?
You can also review the power management settings from the command line:
Will return a list of repeating and non-repeating events that are scheduled.
Will cancel any repeating events.
System Preferences > Energy Saver > Schedule… > [_] Start up or wake [Every day] at [12:00 AM]