Can I leave a 10 week old puppy alone for 1 hour?

Puppies of different ages have varied time limits in which they can and should be left alone. Under 10 weeks: 1 hour. As a guideline, new puppies up to 10 weeks old typically can’t hold their bladder for more than an hour. Once they’re more comfortable at your house, you can leave them at home in their crate for an hour or more at a time. How long is too long for a puppy to be alone. We spoke with Mary Janek, Director of Public Training and Instructor of Competition Obedience at the Muncie Obedience Training Club for answers.