Anarcat recently wrote about Qalculate, and I think I’m a convert, even though I’ve only barely scratched the surface. The thing I almost immediately started using it for is time calculations. When I started tracking my time, I quickly found that Timewarrior was good at keeping all the …
Read in full here:
https://www.chiark.greenend.org.uk/~cjwatson/blog/qalculate-time-hacks.html