Abstract: A timer for displaying the conclusion of a first period of time after a perishable item has been placed into a container. Appropriate periods of time include 3 days, 7 days, or other time periods of any duration selected to correspond to the useful life of a perishable item. The timer includes a display, a first programming button permanently associated with the first period of time, and a timing processor electrically connected between the display and the first programming button. The timing processor may be configured to count the first period of time upon receipt of an input from the first programming button. The timing processor is further configured to cause the display to indicate the conclusion of the first period of time. The timer may include a housing which is selectively attachable to the container. Alternatively, the display, first programming button, and timing processor may be permanently integrated into either the lid or body of the container.