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From: "Schwarz, Konrad" <konrad DOT schwarz AT siemens DOT com>
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject: RE: Different representations of time in ls -l and date(1)
Date: Wed, 31 Aug 2016 15:23:37 +0000
Message-ID: <A45B1767F1002449A37508C2CC6003D736A379@DEFTHW99EJ1MSX.ww902.siemens.net>
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> -----Original Message-----
> > > So my problem is that date(1) outputs AM/PM style dates, whereas ls
> > > -
> > l
> > > uses 24 hour times.
> > >
> > > $ ls -l rtos_benchmark.lst
> > > -rwxr-xr-x+ 1 mchn1350 Domain Users 263 Aug 31 13:14
> > > rtos_benchmark.lst*
> > > $ date
> > > Wed, Aug 31, 2016  1:39:35 PM
> > > $ echo $LC_TIME
> > >
> > > $ echo $LANG
> > > en_US.UTF-8
> > >
> > > Shouldn't they be using the same format?
> >
> > Further experimentation shows that they do indeed use the same format
> > in the POSIX locale, (LANG=C), as required by that standard.
> >
> > However, I still think it is an ugly inconsistency for them to differ
> > in the en_US.UTF-8 locale (which I assume is the default locale in
> > Cygwin).
> 
> Still further investigation shows that on SUSE Linux, with
> LANG=en_US.UTF-8, both of these utilities consistently, if counter-
> intuitively, display 24 hour time.
> 
> So I think the problem lies in Cygwin's locale database.

[Cygwin's locale database is Windows' locale database]

On my Windows 7 machine, Control Panel, Region and Language, Formats shows
Short time: h:mm tt
Long time: h:mm:ss tt
AM Symbol: AM
PM Symbol: PM

This is the standard English (United States) setting.
24 hour format is represented in Windows by either H:mm or HH:mm.

Shouldn't ls -l therefore be using a 12 hour format?

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