Any Ideas Why The System Clock Is Showing Inaccurate Time Settings - Exactly 4 Hours Ahead Each Time - When I Boot Back Into Windows 7 After I Been Just Running Linux Ubuntu For A Long Period Of Time?
Posted on 2012-04-11
Hello. I have a question to ask you. This in some unusual manner involves two operating systems -- Linux Ubuntu v. 11.10 64-bit and especially Windows 7 64-bit.
Hello. I have had issues only with my Windows 7 64-bit's "Date and Time" settings not accurate, specifically wrong time clock issues. Every time I reboot and restart back into my Windows 7 after being many (say over 8) hours on my Linux Ubuntu operating system, I see my Windows 7 clock in my notification area is usual 4 hours ahead of the actual real time where I am -- the eastern United States or the Eastern Time Zone. So if it was 7:02 PM in real time, the computer clock states or shows in the notification area 11:02 PM when I first see when the Windows desktop loads. Some time ago I think I recall I saw a 3 hours ahead of my actual real time. This was only one instance I believe.
This date and time issue does not occur with Linux Ubuntu when I have been on Windows 7 for an extended time period and then I reboot/restart back into Linux Ubuntu. The Ubuntu clock in the upper right corner is always correct. I can be off Windows 7 for several hours and then reboot/restart back into Windows 7 by NEVER being on Linux Ubuntu WITHOUT any Windows 7 time clock issues.
To correct this each time, I have to get into the "Date and Time Settings" window -> "Internet Time" -> "Change settings..." -> "Update now". This works and the actual real time is corrected without any further issues until I repeat the process -- being back on Linux Ubuntu for extended number of hours.
My hardware and operating system configuration and setup:
This is on a single desktop PC that has a tower system. It has several internal hard drives with one physical hard drive dedicated with its own partition for each operating system -- Windows 7 64-bit and Linux Ubuntu v11.10 64-bit. When each operating system was installed, they were installed on their own hard drives without any other hard drive connected. Therefore there is no shared booting processes happening. The hard drive are always connected via SATA data cables to the motherboard. In order for me to change the operating system, I have to change it in BIOS boot device priority settings to either hard drive that contains the particular operating system.
The CMOS battery for my motherboard was changed about 5-6 months ago with a new fresh battery if you are thinking my battery is getting weak and causing potential date and time issues. Also, I would think that the weak battery would provide inaccurate clock time issues in Linux Ubuntu as well when it is not.
So any ideas why the system clock is showing inaccurate time settings (exactly 4 hours ahead each time) when I boot back into Windows 7 after I have been just running Linux Ubuntu for a long period of time on the same computer? Whether a thought, suggestion, recommendation, or a fact; please share with me what you think is going on.