Somehow: Get the accounted Time per day per User


we are using zammad and need to calculate, how many time every agent accounts per day.
Does not matter how it looks (CSV, HTML, XLS, TXT) or how it can be done (Bash Script, API, Some Trigger modding).

I have seen some questions like that but nobody got an answer.
I can’t imagine that there is absolutely no solution, as it would help me with benchmarks a lot