clj-org-analyzer VS gtimelog

You might find org-analyzer of interest/useful.

I use https://github.com/rksm/clj-org-analyzer/ to help me build invoices at the end of the month.

Have you by chance seen https://github.com/rksm/clj-org-analyzer?

Maybe I'm misunderstanding your question, but have you considered org clocking and then some sort of visualization like org-analyzer? You point it to your files and it'll make a nice chart and overview.

Then there is a really cool application that collects all the data from your org-mode and you dynamically get nice pictures of how do you spend your time (there is filtering by time): https://github.com/rksm/clj-org-analyzer It's amazing.

I use emacs org mode with the built-in time tracking features (org-clock-in). A while ago I built an analyzer for org files that allows to spice and dice how you spent your time: https://github.com/rksm/clj-org-analyzer This has become my daily vehicle for tracking work.

Start with some time tracking tool - a) you need to do some regular work on a project (and if it is just 2 hours on a weekend), b) you need to know where all the time ended up.

Very important is also to actually measuring the time, otherwise you won't get better at estimating. There are probably lots of options for timer-apps, so find something that works for you. Personally I use gtimelog.

I have been using the format used by gtimelog[1] for years. It has the benefit of adding one entry per line, so processing is extremely simple.

[1]: https://github.com/gtimelog/gtimelog/blob/master/docs/format...