Bios Time – Android vs Windows

[David]

Has anybody else noticed this. Android 5.1 treats the BIOS clock as GMT +0 hours. So that if your Android clock is set to your correct time zone, the bios clock gets changed by android when performing an “internet time update”. In my case Pacific time, it add +8 hours onto my bios clock.

Now in Windows, it treats my BIOS clock as the current displayed time that my operating system thinks it is.

The issue is that after using Android at -8 PST, my BIOS clock is set to +0 GMT time and then when booting into windows my current time become +8 hours because Windows thinks the Bios time is correct.

So what I did was turn off Androids “Automatic Date and Time” and set my time zone to +0 GMT.

Now when I switch between operating systems, my clock doesn’t get all messed up !!!

[robert wisdom]

thank you, you’re awesome! finally someone figured this out.  was pissing me off royally.

[Anonymous]

Cool man, thanks!

[David]

My pleasure. I was going crazy about the time changing too!

So I just sat down one day, booted back and forth between Android, Bios and Windows when I realized the relation ship to my time change equaled my time zone and that it appeared every time I logged back into Android. The Android time would display correctly, but then exiting Android my BIOS time was now off and subsequently going into Windows the time there was now off.

That’s how it just all fell into place.

Now automatic time update enabled in Windows with your correct time zone should keep you up to date for both systems if you switch between OS systems once in a while. As long as you set your Android to +0 GMT and “Automatic Date and Time” to disabled.

The only thing I might be concerned about is a double activation of daylight savings time changes. In the Spring and in the Fall. But at least that time period is only twice a year and once the change happens you can set it back again if there is an issue.

“Those crazy things that programmers over look, until after the problem can be recreated 100% of the time”  🙂

[mooms]

Actually it’s a bug from Windows, here is a simple fix:

Copy the following into a text document using notepad and save it as utc.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation] “RealTimeIsUniversal”=dword:00000001

Run it, reboot and you’re done.

 

http://crashmag.net/configuring-windows-7-support-for-utc-bios-time

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