Bank robbery is the crime of stealing

Robbery

Robbery is the crime of taking or attempting to take something of value by force or threat of force or by putting the victim in fear. At common law, robbery is defined as taking the property of another, with the intent to permanently deprive the person of that property, by means of force or fear....

 from a bank

Bank

A bank is a financial institution that serves as a financial intermediary. The term "bank" may refer to one of several related types of entities:...

 during opening hours. According to the Federal Bureau of Investigation

Federal Bureau of Investigation

The Federal Bureau of Investigation is an agency of the United States Department of Justice that serves as both a federal criminal investigative body and an internal intelligence agency . The FBI has investigative jurisdiction over violations of more than 200 categories of federal crime...

's Uniform Crime Reporting Program, robbery is "the taking or attempting to take anything of value from the care, custody, or control of a person or persons by force or threat of force or violence and/or by putting the victim in fear." By contrast, burglary is defined as, "unlawful entry of a structure to commit a felony or theft." Bank robbery is therefore defined as entering a bank when it is open and obtaining money either by using force or the threat of force.