This document discusses how Cisco Unified Intelligent Contact
Management (ICM) Enterprise servers handle the start and end of daylight saving
Do I need to adjust the time with any of the ICM servers, Cisco IP
Contact Center (IPCC) servers, or Cisco Interactive Voice Response (IVR)
servers when daylight saving time begins in April and ends in
A. No, Microsoft Windows NT takes care of the time zone change on each ICM
Server. This automatic change is a default Windows NT or Windows 2000 setting.
If you have not disabled the default setting, there is no need to adjust the
time. In order to verify the Windows NT automatic time adjustment on a given
server, click Start > Settings > Control Panel > Date Time
> Time Zone.
Make sure that you have checked Automatically adjust clock for
daylight saving changes.
The ICM database adjusts all new records to the correct time
Do not change the time or time zone on ICM servers.
This change causes report and call-route errors on ICM servers.
Can the end of daylight saving time cause any other
A. Yes, other problems can occur. On some multiple-processor computers,
the current release of Windows NT 4.0 Service Pack 4 (SP4) or Service Pack 5
(SP5) does not smoothly handle the upcoming "fall back" time change that takes
place at 2:00 a.m. (0200) Central Daylight Time (CDT) on Sunday morning,
October 30, 2005. Application of the time change can take 3 hours or longer. Or
the time change can require a restart in order to take effect.
If you are an ICM user, refer to this Microsoft Product Support Service
article for further details: