Power hour

Power hour or 21 for 21 is a drinking game where players must consume a specified number of alcohol shots within one hour. Variants include one shot of beer every minute for an hour, or 60 shots of beer within one hour. In the United States, a power hour event is often associated with a person's 21st birthday when they reach the legal drinking age.^[1][2] A Century Club or Centurion is an alternative to a power hour which involves consuming 100 shots of beer in 100 minutes.^{[3][unreliable source][better source needed]}