Time tracking is a pain when you have to do it for your boss, but it’s incredibly useful when you do it for you own projects, to find out what parts takes most of your time, how much time did you dedicate to this side project, etc.

For years I’ve been using Rescue time, I recently switched to https://wakatime.com, which is more programmer oriented. Its integration with VS Code (and most of the majors and not so majors IDEs) is great, and the reports really detailed.