Feature Requests for find and date

[Marc Gutt]

Dear GNU Team,

I like to see the following features / enhancements:

find
Add %z to help / man page. The numeric time zone sequence is not 
mentioned by now.

date
Add additional basic ISO 8601 date formats to -d as follows:
%Y%m%dT%H%M%S (example: date -d "20240818T013200")
%Y%m%dT%H%M%SZ (example: date -d "20240818T013200Z")
%Y%m%dT%H%M%S%z (example: date -d "20240818T013525+0200")

and all three variants in addition with .%N for optional fraction of 
second (example: date -d "20240818T013525.052+0200")

Those are are all the legal "basic format" of the ISO 8601 as described 
here:
https://en.wikipedia.org/wiki/ISO_8601

I think they would be useful for linux/windows filename interoperability.

--
gruss / regards
Marc Gutt