Subject: Re: bug#53982: date (GNU coreutils) 8.30 bug report "17 april 2022 + 37 week 5pm"

From: Andreas Schwab <[email-masked]>
Date: Mon, 14 Feb 2022 09:17:51 +0100

On Feb 13 2022, Stéphane Archer wrote:

> $ date -d "17 april 2022 + 36 week 5pm" +'%G-%m-%dT%H:%M:%S.0Z'
> 2022-12-25T17:00:00.0Z
> $ date -d "17 april 2022 + 37 week 5pm" +'%G-%m-%dT%H:%M:%S.0Z'
> 2022-01-01T17:00:00.0Z
> $ date -d "17 april 2022 + 38 week 5pm" +'%G-%m-%dT%H:%M:%S.0Z'
> 2023-01-08T17:00:00.0Z
> ```
> as you can see the input "17 april 2022 + 37 week 5pm" makes date return
> the wrong output for some unknown reason.

It doesn't make sense to use %G without %V, or to use it in place of %Y.

$ date -d "17 april 2022 + 37 week 5pm" +'%G/%V %Y-%m-%dT%H:%M:%S.0Z'
2022/52 2023-01-01T17:00:00.0Z

-- 
Andreas Schwab, [email-masked]
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."