Computer clock not updating dst
The problems start when you begin using the computer whereby the created, modified and accessed time on files and folders will get messed up, the emails that you sent and received on your email client software are marked with a much older date resulting in the mails being pushed to the bottom, all secure HTTPS websites won’t load on your web browser, evaluation periods of trial software may instantly expire, etc.
Windows has an automatic time synchronization feature to keep your computer’s clock accurate, but unfortunately it is scheduled to only run once a week.
When the battery runs out, you will start seeing error messages such as “System CMOS checksum bad – Default configuration used” when starting up the computer and the date and time getting reset back to the default BIOS manufacturer date.
You can still start up the computer by pressing a button to resume the boot process and Windows will load as normal.
Reasons for this failure may be related to security rights (this is still under investigation).
After this, it updates a structure in the system that contains this information as well as send out a WM_SYSTEMSETTINGSCHANGE message to running applications The first problem described above seems to be happing during step #3.This tool lets you create and edit time zone entries for the date and time settings in the Control Panel. If you wish to disable Automatic Daylight Savings Adjustment for some reason, you can uncheck the check-box as shown in the above image.Or you may edit the registry as follows: Open the Windows Registry Editor and navigate to the following key: Anand Khanse is the Admin of The Windows Club.com, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP.The key can also be manually verified by checking the TZI value under an affected time zone subkey. typedef struct _REG_TZI_FORMAT REG_TZI_FORMAT; The Standard Date and Daylight Date fields can be checked for the old or new DST rules. If other update packages also have problem then there is a problem with the update engine. Client/Server based solutions such as Novell and Altiris may synchronize the client local clock with the server local clock.Ensure that the time server has also been updated with DST2007 patches. Some third party applications that manually adjust the time may depend on the C run-time library.
Explanation: The root cause of this issue is still under research, but we believe we can attribute the issue to customers manually applying the time zone updates using the TZEdit application, referring to the steps in KB 914387.