Time sheet tracking software

Hi, I'm looking for a time sheet tracking software on either linux or android that can track data like what I was working on and what times I worked on it. Preferably foss.

Example: worked on debugging x from hh:mm to hh:mm on yyyy-mm-dd and hh:mm to hh:mm on yyyy-mm-dd.

I don't care about the exact format, it just needs to contain all the information in the example.

Thanks