Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Time changing, date remains correct

14 Sep 2012   #1

Windows 7 Professional x64
Time changing, date remains correct

At night, when I power down my Vista desktop, the time gets changed to the wrong time, but the date remains correct. Could this still be the CMOS battery?


My System SpecsSystem Spec
14 Sep 2012   #2

64-bit Windows 10 Pro

Hello Vincenzo,

It could be either a dead CMOS battery or the time not set correctly in your BIOS settings. In addition, double check to make sure that you have the correct time zone and Daylight Savings set for your location.

Hope this may help,
My System SpecsSystem Spec
18 Sep 2012   #3

Windows 7 Professional x64

In the BIOS the date was one day behind, the clock a few hours behind. I reset both, then the next day Windows time was off again. BIOS date was still correct, BIOS time was off.
Time zone and DST are correct in Windows, didn't see them in BIOS.

If it was the CMOS battery, wouldn't the date reset itself too?

My System SpecsSystem Spec

18 Sep 2012   #4
Microsoft MVP

Windows 7 Ultimate X64 SP1

The date will take a 24 hour offset before it would change, so a bad CMOS battery could be the cause.
My System SpecsSystem Spec
18 Sep 2012   #5

Windows 8.1 Pro RTM x64

Time zones don't apply to the BIOS. You need to manually set the time/date there according to your local t/d. Normally, with a dead or failing CMOS battery, the t/d will reset itself to show the time and date when the BIOS software version was installed. Since this isn't happening, it is unlikely to be a bad battery (although you could replace it as a matter of course, they're not expensive).

You could check to see if you are indeed using the correct time zone, as there are several that use the same offset from GMT/UST, but which have local variations (such as dates of operation). In addition, check that you are not 12hrs out, as this is not always obvious especially when using the 12hr system. Finally, consider changing to another time server for your internet time.
My System SpecsSystem Spec

 Time changing, date remains correct

Thread Tools

Similar help and support threads
Thread Forum
Date and Time - Allow or Prevent Users and Groups from Changing
How to Allow or Prevent Specific Users and Groups from Changing the Date and Time in Windows This will show you how to allow or prevent specific users and groups from being able to change the computer date and time in Vista, Windows 7, and Windows 8. You will need to be an administrator to...
Computer double beeping and changing date and time.
Hello. For the last few months almost every time I turn on my computer it will double beep(instead of one beep) and once I get to my desktop the date will go back to January 1st, 2011. If this is not the right spot to put this then please move it.
General Discussion
Date/Time jumps after correct setting of date/time/timezone?
Have set the correct time zone, set the date and time, and within half an hour, the time jumps ahead significantly. Time then continues jumping periodically, and date as well. Any patch available for this? Thanks.
General Discussion
Date and Time keeps changing
So anytime I set my date and time to the correct settings either manually, in the bois, or allowing to sync with internet time option, the date and time seem to adjust forward randomly but seems to be often 2-3 weeks. Not sure when it changes since I never catch real time but I've changed my time...
General Discussion
Is there a way to disallow changing system time/date?
A bunch of guys in the office change the date/time and conveniently claim they finished their work on time. Is there a way to disallow changing of time? Thanks guys
General Discussion
System not displaying the correct date & time
Hi All, I am using Windows 7 32 bit. Recently i am facing a strange problem with the system date & time (system clock). My system is not displaying the correct date & time. I need to manually adjust it. The time and date of my computer remains the same as that of the time and date that I shut...
BSOD Help and Support

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 19:07.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App