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From: Thorsten Kampe <thorsten AT thorstenkampe DOT de>
Subject: Re: Resetting time via time server doesn't affect cygwin 'date'
Date: Wed, 30 Mar 2011 18:16:12 +0200
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* Henry S. Thompson (Wed, 30 Mar 2011 14:10:37 +0100)
> I'm running 1.7.9-1 on my 64-bit Windows 7 laptop. I recently noticed
> that my box was 15 seconds adrift from my Linux desktop. After some
> minor hassles, I was able to use Clock/Date and Time/Internet
> Time/Change Settings/Update now to sync with a local ntp server, the
> same one my desktop is using. At this point the Windows clock on the
> laptop and my desktop were in sync, but 'date' from a bash window was
> _still_ 15 seconds out.
> 
> Is this a pervasive problem (to test this yourself, just use the
> Windows UI to set your clock forward a minute, test the 'date' (it
> should be as per Windows clock), then use the above path to resync
> with a time server, and observe that 'date' is _not_ adjusted back),
> or particular to Windows 7/Cygwin 1.7.9?

I just tested it: I set the time manually back five minutes via the the 
control panel > Date and Time. The time change was reflected in a Cmd 
window ("time /t") while a "date" in bash still showed the "old" time (+
5min). Where does the bash date gets the time from?!

Thorsten


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