1. Glucose analysis instrument for diabetics, comprising: a measuring device for determining glucose concentration values, a displaying device for displaying the glucose concentration values, a signaling device for generating a reminder signal, and a control and evaluation device which comprises a processor and a data memory and is used to determine reminder times at which the signaling device is actuated, wherein event data are stored in the data memory, said event data comprising information on one or more events including the type of the event and the time the event occurs; and wherein the reminder times are determined by means of a reminder time determination algorithm executed with the processor using event data from at least one previous day.