Background [edit]. In 1985, the DoD called for an extensive review of the education and training functions. At the same time, President Reagan established the Packard Commission to review the management of the DoD.
Itâs recommended that four hours is the longest that dogs should routinely be left alone for. Every dog will be different, dependant on how old they are and what they are used to. For example, four hours would generally be too long for a very active, young puppy.
No, a dog cannot stay alone 12 hours. It is very difficult to ensure the physical safety and comfort of one or several dogs that stay unsupervised that long, and from a mental point of view it is of course totally unacceptable.