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Date: Tue, 24 Jan 2012 19:12:51 -0500
From: Tim Prince <n8tm AT aol DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: 1.7.9 : date command fails for year 1900
References: <0105D5C1E0353146B1B222348B0411A20A51A74322 AT NIHMLBX02 DOT nih DOT gov>
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  On 01/24/2012 06:51 PM, Buchbinder, Barry (NIH/NIAID) [E] wrote:
>   $ date -d '500 years ago'
>
> Now use cal to get a calendar of that month.  Do days of the week
> correspond?
>
> Another experiment on your SL box:
>
> $ date -d 1752-09-10
>
> This should give an error message, since (in Britain and its
> Dependencies) this date did not exist.  Does it?
>
> $ date -d 1900-02-29
>
> This date didn't exist in the Gregorian calendar.  (No leap year in years
> divisible by 100 unless they are also divisible by 400.)  Did date give an
> error?
>
>
Only the last one produces invalid date on RedHat 6.0.  As you 
suggested, the dates produced don't appear in the corresponding months 
of cal.

-- 
Tim Prince


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