How long does it take for something to ship to you in the United States?

That depends on exactly where you're shipping to and from, and what shipping service you pay for. You can have something sent across the country overnight if you pay for it. It could also take a week or more if you choose a slower and cheaper service

There are many options for shipping, from overnight to about a week. if you get tracking you can check and see where it has been, and perhaps some guess as to when it will arrive. It is no guarantee, but only an estimate.