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U.S. 2007 Daylight Saving Time


Last Updated:  04/03/2008

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Content starts here

 Overview
Beginning March 11, 2007, Daylight Saving Time (DST) start and end dates for the United States will transition to comply with the Energy Policy Act of 2005.  Under the new law, Daylight Saving Time will begin the second Sunday of March and end the first Sunday of November, extending the timeframe by four weeks.  Due to this DST change, operating system and application software updates may be required to ensure that the system clock on HP products is accurate.

This is not unique to HP products.  All devices that automatically adjust Daylight Saving Time and that support operating systems or rely on a local time zone that observes DST will be affected by the 2007 DST change.

U.S. 2007 Daylight Saving Time Changes

2006

2007

U.S. DST Start U.S. DST End U.S. DST Start U.S. DST End
First Sunday in April Last Sunday in October Second Sunday in March First Sunday in November
2 April 2006 29 October 2006 11 March 2007 4 November 2007


Other Countries Affected by the Change

Several countries other than United States of America are also implementing the same DST change (Canada, Bermuda), and other countries are expected to make similar changes.  For a complete listing of Worldwide Daylight Saving Time schedules, including countries that are changing along with the United States, refer to the Worldwide Daylight Saving Reference Page.


Why care about DST?

You are affected by the new DST change if:

  • You are running a computer system in the USA, Canada, or Bermuda, particularly if the system is running an application that performs time-sensitive functions, such as scheduling or creation/validation of time or date stamps.
     
  • You are outside of the USA, Canada or Bermuda but are running a computer system that interacts with or is integrated with systems in the USA, Canada or Bermuda that have transitioned to the new DST rules.
     

HP is providing patches or updates that will address the changes for affected HP products as the result of the U.S. 2007 DST law.  Utilize this information to perform assessment of your HP products.  In some rare circumstances, based on your particular configuration and applications, you may encounter a DST issue that HP or your third party software vendor has not addressed, if so please contact HP Support. This site is subject to change.  Please check back for updates.

 

 

HP Product Assessment of U.S. 2007 DST Impact


 

Software

» Hardware

» Networking

» Storage

» Management Software

Product Home Page

Product Daylight Saving Information

HP MPE/IX  Download and install TZTAB manually
HP NonStop Support Note S07001 (login required)
HP OpenVMS Daylight Saving Time information
HP Tru64 UNIX Daylight Saving Time information
HP-UX Customer Notice C00832124
 
Microsoft® Refer to Microsoft® DST site
Open Source and Linux Refer to RedHat© Products
Refer to Novell SUSE© Products
Refer to Debian® Products
   
Layered Product
Home Page
Applicable Operating System

Product Daylight Saving Information

Java HP OpenVMS
HP Tru64 UNIX
Customer notice
Notice concerning Sun Bugs 6466476, 6530336
Java

HP-UX

Customer Notice
 Notice concerning Sun Bugs 6466476, 6530336
Java NonStop Customer Notice
Notice concerning Sun Bugs 6466476, 6530336
     
Management Software Product Daylight Saving Information
HP OpenView Daylight Saving Information
Former Mercury products Daylight Saving Information
   
Communications Development Software Product Daylight Saving Information
HP OpenCall Customer Notice
   
Remote Support Product Daylight Saving Information
ISEE Customer Notice
HP SIM and the Service Essentials Customer Notice c00809216
HP is a trademark of Hewlett-Packard Development Company, L.P. © Copyright 2007 Hewlett-Packard Development Company, L.P. HP shall not be liable for technical or editorial errors or omissions contained in this document. The material contained herein is provided "as is" without warranty of any kind. To the extent permitted by law, neither HP nor its affiliates will be liable for direct, indirect, incidental, special or consequential damages including downtime cost; damages relating to the procurement of substitute products or services; damages for loss of data; or software restoration. The recommendations included here do not create any additional warranty or guarantee by Hewlett-Packard and are subject to change without notification.

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®Debian is a registered trademark of Software in the Public Interest, Inc.
©bea and JRockit are copyrights of BEA Systems, Inc.
©Symantec and Veritas Storage Foundation are copyrights of Symantec Corporation.

 

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