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Daylight Saving Time

In August of 2005 the United States Congress passed the Energy Policy Act, which changes the dates of both the start and end of daylight saving time (DST) for 2007.

Daylight Saving Time will start three weeks earlier (2:00 A.M. on the second Sunday in March) and will end one week later (2:00 A.M. on the first Sunday in November) than the usual schedule.

Many applications that involve scheduling, such as Epic and GroupWise, depend on user workstation settings for time zone and daylight saving time information when creating, sending, and accepting appointments.

If workstations are not patched, appointments in the new additional DST range from March 11, 2007 through April 1, 2007 will be off by one hour. In the case of email appointments, both sender and recipient machines must be patched. This also applies to the added DST range from October 28, 2007 to November 4, 2007.

Macintosh OS X 10.3 and Mac OS X Server 10.3 Panther

All time zone and Daylight Saving Time changes, as of January 2007, are included in the Daylight Saving Time Update, released in February, 2007. If you've not already done so, install Mac OS X Panther 10.3.9 and the Daylight Saving Time update. For more information about this update, see this article

GroupWise Calendar Users - Effects of the DST Change on Appointments

Systems Impacted by Change in Daylight Saving Time

Workstation Operating Systems

Windows XP (SP2) Microsoft patch available Download Windows Daylight Saving Time Patch
Windows 2000 (server & workstation) No MS Patch; MS Utility available About TZEdit Download the TZEdit utility
Windows NT 4 (server & workstation) No MS Patch; MS Utility available About TZEdit Download the TZEdit utility
3rd Party Patch for Windows 2000 & NT Unsupported patch (Vendor Site) Download DaylightSavingFix Patch
Windows 2003 Server No MS Patch; MS Utility available About TZEdit Download the TZEdit utility
Windows Vista No patch needed Vista includes updated time zone definitions
 
Macintosh OS X 10.4 Included in Apple patch release 10.4.6 Information from Apple on patches
Macintosh OS X 10.3.9 Update Patch provided by Apple Information from Apple on patches
3rd Party Patch for OS X 10.0.-10.2 Unsupported 3rd party patch MacUpdate site for download
Macintosh OS 9 and earlier No patch from Apple Manually change DST twice each year
 
Java Runtime (JRE) on workstations May need update - check with application support Link for Java patches
Java for Macintosh Different patches for both 10.4.X and 10.3.x

Information from Apple on patches

Handheld Devices

Blackberry Help With Patching.
BlackBerry site for download
Windows Mobile OS devices Help With Patching.
Microsoft Site for Information
Palm Corp. site for patch download & information  
Palm OS devices

Campus Applications Affected by Not Patching

Epic User stations must have DST patch for accurate scheduling Available above or from the Application Menu
GroupWise Calendaring/Scheduling Windows & Macintosh stations must be patched Available above or from the Application Menu
  Stations using GroupWise WebAccess must be patched  
  Home stations using GroupWise client or web must be patched  

Patch status of systems managed by Information Resources

Clinical Workstations Windows XP and Java DST patches applied Patched between 01/22/07 and 01/26/07
Hospital Managed Workstations Windows XP and Java DST patches applied Patched between 01/22/07 and 01/31/07
Hospital users should restart daily so that the patch installs at login
Student Managed Workstations
Windows XP DST patch applied To be patched 02/03/07
All IR-supported servers Patched by IR Patched on or before 01/21/07

 

 
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