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Strange Problem with clock

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slajoh01

Technical User
Apr 2, 2006
24
HU
I recently just set Windows to use the CMOS or Real Time clock as UTC...And since Im dual-booting with Solaris, Solaris shows the displayed time as local and also Windows is showing the displayed time as LOCAL while the Real Time Clock (RTC) is set to UTC...

But, however, everytime I bootup to Windows, it does show LOCAL time and its even set to the correct PDT Time-Zone. Then after about 45 minutes or so....it switches 7 hours ahead from my Time Zone (PDT)....Why is it doing this??

Perhaps maybe it assumes that my system is in the UTC time zone?? I just do not understand...

Solaris..however..has no issues..But I am not 100% sure about that one either because I have not kept my PC up for over an hour under Solaris...

But why in Windows the displayed time shows local time and then after about 45 minutes later...it gets switched 7 hours ahead of my time zone even though I have the time zone set as PDT??

However, last week I did this registry tweak to tell Windows to use UTC.

HKLM/System/CurrentControlSet/Control/TimeZoneInformation/RealTimeIsUniversal =(1)

I created the last key value.
 
It changes the time about an 1 hour the PC has booted.
 
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