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Subject: Re: Different representations of time in ls -l and date(1)
To: cygwin AT cygwin DOT com
References: <A45B1767F1002449A37508C2CC6003D736A232 AT DEFTHW99EJ1MSX DOT ww902 DOT siemens DOT net> <860c2a0f5dd46780649de9a26ebc0464 AT mhoenicka DOT de> <dcd35b85-cfff-a821-a81c-b311db1bd242 AT farance DOT com> <60d27734-5ce7-6e25-e170-a0baa5442a69 AT redhat DOT com>
From: Eric Blake <eblake AT redhat DOT com>
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Date: Wed, 31 Aug 2016 09:45:58 -0500
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From: Eric Blake <eblake AT redhat DOT com>
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Subject: Re: Different representations of time in ls -l and date(1)
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On 08/31/2016 09:36 AM, Eric Blake wrote:

> Not necessarily.  ls hardcodes its default representation for files
> younger than 6 months to:
>=20
> "%b %e %H:%M"
>=20
> while date hardcodes its default representation to:
>=20
> nl_langinfo(_DATE_FMT)
>=20

Except that I just tested, and nl_langinfo(_DATE_FMT) for both Cygwin
and Linux is

%a %b %e %H:%M:%S %Z %Y

so something else weird is going on.

Oh duh, it's locales!  nl_langinfo() is locale-specific, and you are
(probably) running in a default locale of en_US rather than the C locale.

$ date
Wed, Aug 31, 2016  9:39:55 AM
$ LC_ALL=3DC
Wed Aug 31 09:43:42 CDT 2016

So, the answer to your question is determined by what your locale thinks
is the appropriate representation; and I have no control over whether
Windows' locale defaults will match glibc's locale defaults for en_US or
any other locale outside of C.

--=20
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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