Agent jobs are running on an incorrect schedule after Daylight Savings even though the computer is set to automatically adjust for Daylight Savings

  • Document ID:7012081
  • Creation Date:04-Apr-2013
  • Modified Date:08-Apr-2013
    • Micro Focus Products:
      AppManager

Environment

NetIQ AppManager 7.0.x
NetIQ AppManager 8.0.x

Situation

The agent jobs are running on an incorrect interval if the customer is using specific scheduled values when the TZ Microsoft Windows environment variable is being used due to changes in Daylight savings in 2007.

Resolution

If a legacy application is no longer using this environment variable it can be removed, or a hotfix can be downloaded from Microsoft to correct this issue.

The hotfix and additional information can be found at http://support.microsoft.com/kb/932590

Cause

When using the TZ environment variable, the C Run-Time (CRT) localtime function and the CRT _localtime64 function will not correctly recognize DST. These functions will recognize DST as starting on the first Sunday of April and as ending on the last Sunday of October for all dates.