Core issue
This issue is due to the presence of Cisco bug ID CSCsg24465.
The energy bill for 2007 changes the Daylight Saving Time by four weeks from the second Sunday of March to end on the first Sunday of November.
Resolution
For a workaround, complete one of these steps:
Note: Refer to the About Appliance Upgrades and Patches section of System Configuration: Basic for more information before you install the hotfix.