The invention relates to a method for determining blood glucose characteristics. The method comprising steps of receiving blood glucose input data representing blood glucose values measured in a discontinuous mode by a blood glucose measurement device (1), receiving time information data representing measurement time information for the blood glucose values, determining time period information representing a time period between a early and a later blood glucose value measured after the early blood glucose value, determining a value difference representing the difference between the early and the later blood glucose value, determining time dependent blood glucose characteristics by deriving time dependent blood glucose change information based on an assignment of the value difference to the time period information, and providing blood glucose characteristics output data representing the time dependent blood glucose characteristics. Furthermore, the invention relates to a system for determining blood glucose characteristics and a computer program product.
