How much time passes?

I was watching this with my son tonight and I began to wonder how long it takes for the puppies to return home. The way the movie is shot makes it seem like the rescue only takes a night. However there are a couple of little things that made me question just how long the rescue really took.

At the end of the movie, right before the dogs come back, the Nannie makes a comment about how she feels like she can still hear the dogs barking at night, which makes it seem like the dogs have been gone for much longer than a couple of days. Also, Roger's song about Cruella is now a radio hit and they mention using their country home to raise all the new puppies. At what point while the dogs were gone did they become rich enough to purchase a second home in the country??