How long can an 8 week old puppy be left alone?

At 8 weeks, a puppy has just left its littermates and is still learning that this new home is safe. Bladder muscles are not developed enough to hold on for more than roughly an hour or two while awake, so anything longer usually ends in an accident that has nothing to do with training.

Start with absences of 5 to 10 minutes on day one, done 3 or 4 times, then stretch to 20 or 30 minutes by the end of the first week if the puppy settles quietly. Someone should be able to check in or arrange a midday visit for anything beyond an hour during these early weeks.

A small, puppy proofed area such as a pen or crate with the door open into a blocked off room gives the puppy somewhere safe to settle without the whole house to explore. A worn t shirt with your scent and a stuffed chew toy in that space often makes the first short absences noticeably calmer.

Some crying in the first few sessions is normal, since this puppy has never truly been alone before in its short life. What is worth addressing quickly is crying that does not pause at all across a full 5 minute absence, or a puppy that seems frantic rather than simply unsettled, both of which suggest the current step is too big. Dropping back to an even shorter absence, sometimes just 30 seconds, and rebuilding from there almost always resolves this within a few days, and there is no harm in moving slower than the plan above suggests for a particularly sensitive puppy.