Abstract: A game of estimating time can have multiple players competing against each other. The players can be provided with buzzers. The players are challenged to estimate a designated time interval. At the interval of time estimated by the person to be equal to the designated time interval the player actuates his buzzer. The buzzer can be signal-connected to a timer, which functions to display how close the estimated time interval of the player is to the designated time interval. Alternately a secret designated time interval is communicated to the players by the sounding of two buzzer sounds and the players have to estimate the length of the time interval that occurred between the buzzer sounds.