Information about the impact of the US Energy Policy Act of 2005, which changes the effective dates of US Daylight Saving Time (DST) in 2007. Actions are required to address this issue in Tivoli Storage Optimizer for z/OS.
A provision of the United States Energy Policy Act of 2005 extends DST by four weeks, beginning in 2007. Several countries (Canada, Bermuda) are also implementing the same DST change; other countries may decide to make similar changes to DST rules.
Beginning in 2007, DST start and end dates will be:
- Start date: Second Sunday of March (11 March 2007)
- End date: First Sunday of November (4 November 2007)
Systems or applications that process dates and times could be affected by this change. If not addressed, time and date calculations could be incorrect.
|How do I know if my systems could be affected?|
|What could happen if I do not update my systems?|
|What do I need to do to protect my systems?|
|DST fixes for Tivoli Storage Optimizer for z/OS|
- A fix is required to the Tivoli Storage Optimizer product. This fix became available on January 30, 2007 and can be downloaded from: http://www-1.ibm.com/support/docview.wss?rs=1055&context=SSX3FM&dc=D400&uid=swg24014739&loc=en_US&cs=UTF-8&lang=en
- In addition, customers will need to upgrade the z/OS Java application using the IBM Time Zone Update Utility for Java (JTZU):
Additional information regarding IBM Java and DST changes:
SWG Flash: Changes to DST affect IBM Java SDKs
Links to important information about Java and DST for IBM customers:
|Where can I get more information?|
|Consolidated information on the impact of DST changes on IBM products is be available at http://www.ibm.com/support/alerts/daylightsavingstimealert.html|
For more information on the provision, see the Energy Policy Act of 2005