I can see there are multiple questions raised on this, such as this, but can see no ideas that align unfortunately.
When displaying any Business Hours metric and displaying Auto, the days calculation completely disregards the length of a business day per the Business Hours settings and instead counts 24 hours as a day - thus inferring false information and the only workaround is to display in secs/mins/hours only and introducing terrible UX.
This issue only gets compounded if it tracks as far as a week as this = 168 hours. Where as if a business day was set to 8 hours and 5 working days it would be 40 hours and in turn 168 hours should return 4w 0d 8h

This is an issue in both FS and FD in all areas these metrics can be chosen including, dashboard (in FS), analytics and automations

