Holidays in the United States are observed throughout the year, and vary from national to regional observances. Some holidays are federal holidays, which means they are recognized by the federal government, and government offices and schools are usually closed. Other holidays are observed by certain states or regions, and may not be recognized in other parts of the country.
Note that this list is not exhaustive, and there may be other holidays or observances that vary by state or region. Additionally, some holidays, such as Easter and Passover, do not have a fixed date and may vary from year to year.