printing durations?

[c-cube]

I found nothing about https://en.wikipedia.org/wiki/ISO_8601#Durations ?

If you want I just wrote a function for "human readable durations", which would also be nice to have.

[sagotch]

It is indeed a part of the RFC not implemented, since I focused on what I needed and never took time to complete it (yet).

Any contribution is very welcome (as long as they stick to the spirit of what is already implemented and respect the RFC, obviously), so feel free to add this function if you know what to do 👍

[c-cube]

Can you assign me? ^^
I will see if I have the time, not that I promise anything