How long does it take to apply for a visa to the United States?

It is more difficult. The United States currently does not allow independent travel to the mainland, or it is almost impossible to approve a tourist visa, unless you are traveling in a group or visiting relatives, and the other party provides a guarantee. The normal processing time for a visa is about one month, or 10 days if faster. You need to go to the local US visa office for an interview. If there are no problems with your visa and pass, you can go.