Time-tracking software records the time you spend on tasks. The time-tracking helps you create billing reports, prepare invoices, and analyze your workflow for better efficiency. This week’s Linux Picks and Pans product review highlights some of the best free time-tracking applications for Linux. Most of these apps offer basic time-tracking functionality and little else. Some have some very useful additional features. A few are strictly old school Linux with only command line and/or text-based input and display.