Timing

A method and apparatus that is attachable to a receptacle for timing a predetermined interval according to a timing schedule of a set of timing schedules. The apparatus has an electronic timing circuit that provides an alarm signal at the expiration of the predetermined time interval. The timing circuit includes a set of inputs and a set of outputs that are both connected to processing circuitry. The processing circuitry defines the set of selectable timing schedules. The inputs correspond to the timing schedules, and the outputs issue the alarm signals. The apparatus also includes a sensing mechanism for selectively engaging an input based on the position of the mechanism. Each timing schedule is selectable by the device through the inputs that are engaged and disengaged.