PC On / Off Time is spent at the computer working in graphical form. The free time tracking refers each past three weeks into its data and presents it in a Balkendiagramn. For each of the past days PC On / Off Time creates its own line, the weekends are marked in color for clarity. The columns of the clear table, however, shed light on was at what time the PC is engaged or not. Also times that spent the computer is in standby mode and restarts the timer refers in his observations with one. Based on these values PC On / Off Time calculates both the total number of hours on the computer as well as an arithmetic average per day. Since the freeware takes its information from the depths of the Windows system, the electronic timer also displays working hours that were made prior to their installation. In addition, the time clock does not require installation, so is also suitable for portable use.