DST 2007 " Windows Clients / Servers changed time erroneously"

As we get closer to the DST change here in the US, we have received some reports from a few customers that the system time erroneously reverted back an hour last Sunday (October 28). On these systems the customers did have KB931386 and / or KB933360 installed. What we have found from reviewing the data […]

As we get closer to the DST change here in the US, we have received some reports from a few customers that the system time erroneously reverted back an hour last Sunday (October 28). On these systems the customers did have KB931386 and / or KB933360 installed. What we have found from reviewing the data provided by these customers that the affected clients appeared to have some unexpected registry values, as shown in the keys below (the bold / red sections are the pertinent values)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation\StandardStart: 00,00,0a,00,05,00,02,00,00,00,00,00,00,00,00,00

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation\DaylightStart: 00,00,04,00,01,00,02,00,00,00,00,00,00,00,00,00

In order to recover from this scenario, you can use either of the recovery methods below.

Method 1 - Use the "Date & Time" Control Panel Applet: Assuming that the user has the rights to modify the system clock, they can do the following.

  1. Using the