I am looking for a GUI program that runs on Linux and has a feature similar to Microsoft calculator to add/substract days, and compute durations between dates in (days, months, years, etc.).

To get an idea about this feature, it is also similar to this website.

I am not interested in CLI tools like date command , etc.

I appreciate your suggestions

  • There's a learning curve, but this still exists: cyberciti.biz/tips/… If that works for you, I can type up an actual answer. It's not a very steep learning curve, but there is a learning curve.
    – KGIII
    Aug 30, 2020 at 16:28
  • 1
    Libreoffice can surely do it.
    – peterh
    Aug 30, 2020 at 17:25
  • @KGIII: Thanks for the suggestion, I have tried it already but imo, it is a little bit hard to use. Aug 30, 2020 at 17:43
  • @peterh-ReinstateMonica: Could you please elaborate a little bit? do you mean libreoffice calc? Aug 30, 2020 at 17:43
  • What you'd be looking for is under Functions > Date & Time, if that helps. It's pretty straightforward from there. Alas, it's the only GUI Linux tool that I know of that does date and time. Poke at it for a half hour and you'll probably have it sorted out well enough for your needs.
    – KGIII
    Aug 30, 2020 at 20:02

1 Answer 1


Qalculate, a 'Powerful and easy to use calculator' that you find in all distros (even Windows) has the function you are looking for. You can check it at: https://qalculate.github.io/ It's great for units too.

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