date(1) default format changed between 10.3 and 11.0-BETA3

[Julian Elischer]

On 4/08/2016 7:24 AM, Mark Martinec wrote:
> Is it normal/expected/documented that the date(1) command in 11.0
> now produces a timestamp in substantially different format
> in an "en_US.UTF-8" locale (long names, commas, 12 vs. 24h hour time):
>
>   Thursday, August  4, 2016 at 12:50:43 AM CEST
> vs:
>   Thu Aug  4 00:52:29 CEST 2016
>
one of those is a bug.  the formats are defined in posix I believe.

>
> Setting LC_TIME does not help:
>
>   $ LC_TIME="C" date
>   Thursday, August  4, 2016 at 01:13:37 AM CEST
>
> although LC_ALL="C" _does_ help.
>
>
> This is funny too, especially regarding commas:
>   $ LC_ALL="en_GB.UTF-8" date
>   Thursday  4 August 2016 at 01:16:45 CEST
>   $ LC_ALL="en_US.UTF-8" date
>   Thursday, August  4, 2016 at 01:16:54 AM CEST
>
>
> The date(1) man page states:
>   The date utility is expected to be compatible with IEEE Std 1003.2
>   (“POSIX.2”).
> What does POSIX.2 say about date(1) following a locale?
>
>
>
> ======
> 11.0-BETA3:
>
> $ date
> Thursday, August  4, 2016 at 12:50:43 AM CEST
>
> $ uname -a
> FreeBSD xxx.ijs.si 11.0-BETA3 FreeBSD 11.0-BETA3 #0 r303469: Fri Jul 
> 29 02:27:28 UTC 2016 
> root at releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64
>
> $ locale
> LANG=
> LC_CTYPE="en_US.UTF-8"
> LC_COLLATE="en_US.UTF-8"
> LC_TIME="en_US.UTF-8"
> LC_NUMERIC="en_US.UTF-8"
> LC_MONETARY="en_US.UTF-8"
> LC_MESSAGES="en_US.UTF-8"
> LC_ALL=en_US.UTF-8
>
> ======
> 10.3-RELEASE-p6 :
>
> $ date
> Thu Aug  4 00:52:29 CEST 2016
>
> $ freebsd-version
> 10.3-RELEASE-p6
>
> $ uname -a
> FreeBSD yyy.ijs.si 10.3-RELEASE-p4 FreeBSD 10.3-RELEASE-p4 #0: Sat 
> May 28 12:23:44 UTC 2016 
> root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
>
> $ locale
> LANG=
> LC_CTYPE="en_US.UTF-8"
> LC_COLLATE="en_US.UTF-8"
> LC_TIME="en_US.UTF-8"
> LC_NUMERIC="en_US.UTF-8"
> LC_MONETARY="en_US.UTF-8"
> LC_MESSAGES="en_US.UTF-8"
> LC_ALL=en_US.UTF-8
>
>
>
>   Mark
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