Bangladesh has 15 national holidays, based on three separate calendars: Gregorian (Christian calendar), Islamic (Hijri calendar), and Bengali calendars. Public holidays in Bangladesh account for 19 days of the year. For constitutional reasons, the United States does not have national holidays in the sense that most other nations do, i.e. days on which all businesses are closed by law and employees have a day off. Pursuant to the Tenth Amendment, the U.S. federal government only has constitutional jurisdiction to establish holidays for itself, for certain federally-chartered and regulated businesses (such as federal banks), and for the District of Columbia; and pursuant to the First Amendment, neither federal, state nor local government can require any business (other than those mentioned) or individual to observe any holiday. Otherwise, constitutional authority to create public holidays is a power reserved to the states. Most states also allow local jurisdictions (cities, villages, etc.) to establish their own local holidays.
Public/National Holiday Calendar 2014 Bangladesh