Aim for 10,000 hours. You can record the days and hours of any experience, such as hobbies, lessons, and learnings.- Register the time you have spent so far when you add a skill. No need to count up from 0 minutes.- You can set your favorite color for each skill.- Add as many skills as you like.- When you finish your study, for example, add the time you have worked on it with a few taps.