Mailinglist Archive: opensuse (1445 mails)

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Re: [opensuse] Wrong time zone
Am 26.03.2012 11:33, schrieb Dr. Werner Fink:
On Mon, Mar 26, 2012 at 10:56:01AM +0200, Herbert Graeber wrote:
Am 26.03.2012 10:40, schrieb Dr. Werner Fink:
On Sat, Mar 24, 2012 at 10:48:36PM -0500, Jay Vollmer wrote:
[...]
From my http://www.suse.de/~werner/CMOS-CLOCK-HOWTO:

For Vista[tm] SP2, Windows[tm] 7 and Server 2008 R2 the System
Administrator of those Windows[tm] systems could create a file:

---------------------------------- *snip* -------------------------------
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]
"RealTimeIsUniversal"=dword:00000001
---------------------------------- *snap* -------------------------------

and then double click on it to merge this with the contents of the file above
with the Windows[tm] registry. With this it could be possible to use for both
those Windows[tm] systems and the Linux system UTC as reference of the CMOS
clock.
I have tested this some time ago. Works fine on Windows 7, but fails
to switch from/to DST on Vista SP2.
In other words, the user space clock shows the correct local time but the
system does not have and DST information of the local time zone or does
not use such an information.
I forgot to mention, that I have made the test with windows using SNTP synchronization. Maybe Vista has some problem with
RealTimeIsUniversal and SNTP only. Nevertheless with Windows 7 the RealTimeIsUniversal registry setting works well.

Herbert
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