Windows xp wrong time

I guess the question is: Anybody got any ideas what kind of process could be stopping interrupts or does anyone know how I can find out? Check the internal CMOS battery. Most likely it's either dead or dying.

That's usually what causes that problem. Ath Supporting Member Joined in Posts: 3, It's real hardware, and not a VMWare image running on a virtual host? If it's not installed, you'd probably lose several hours per day in time though Battery is most likely cause if it's hardware, like 4wd said. I've run into this one a few times myself. I should have mentioned I've changed the battery but the fact that the RTC doesn't lose time at all and that Windows system time is correct at boot and starts losing time from that point would imply that the RTC isn't the problem.

If it was I would expect to see the time incorrect from the moment the system boots. Also, from all that I've read, Windows doesn't use the RTC once it's booted - it's then down to system interrupts.

I swapped the batteries between them - the W7 system runs fine and the XP system still loses time. The problem didn't move with the battery. Ath: Yes, real hardware. But now, I really should be asleep. For example, a computer's clock may change to daylight saving time on the first Friday of May at , and it may change from daylight saving time on the last Wednesday of September at However, in Egypt, daylight saving time starts on the last Friday in April at midnight and ends on the last Friday in September at midnight The behavior occurs if the date and time properties are set to the following:.

The Automatically adjust clock for daylight saving changes check box is selected. This problem occurs because the information in the registry for this time zone is incorrect.

The reference data is stored in the following subkey:. We do not recommend that you resolve this problem by modifying the registry. To resolve this problem, obtain the latest service pack for Windows Server For more information, click the following article number to view the article in the Microsoft Knowledge Base:. A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article.

Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix. If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix.

For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:. If you do not see your language, it is because a hotfix is not available for that language. The English version of this hotfix has the file attributes or later file attributes that are listed in the following table.

We can't guarantee quick solutions - Experts Exchange isn't a help desk. We're a community of IT professionals committed to sharing knowledge. Our experts volunteer their time to help other people in the technology industry learn and succeed. Plans and Pricing. Contact Us. Certified Expert Program. Credly Partnership. Udemy Partnership. Privacy Policy.