I personally believe there is no wrong time to get a dog! Who ever tells you that there is a bad time to get a dog you should just never speak to again, because you don't need that kind of negativity in your life!
Dogs are not only pets to some people, they are basically children! There is no wrong time to get a dog some people get dogs for many different reasons! Some of those reasons being support animals, someone to be around when they are down, they even might be saving them from the shelter or something like that! The puppy might think you are saving it's life, but he/she is also saving your life in some cases!