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Daylight Saving Time (DST) 2007 information for WebSphere Studio Application Developer Integration Edition
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| | | Abstract | | Information about how changes to Daylight Saving Time (DST) in 2007 may affect systems and applications, worldwide. | | | | | | Content | A provision of the US 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.
DST in 2007 begins the second Sunday in March (March 11) and ends the first Sunday in November (November 4). 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? |  | Your systems are likely to be affected by this change, even if you are operating outside of the US.
Date and time processing functions in systems and applications in countries implementing the new DST rules (U.S., Canada, Bermuda) are affected. Systems and applications in countries not implementing the DST changes could be impacted if they support users, transactions or applications originating in countries which are implementing the new DST rules. For example, scheduling or synchronizing problems may arise where systems make or check date or time stamps relating to transactions in other countries, or there may be difficulty in scheduling meetings. | | | | What will happen if I fail to update my systems? | | Systems or applications that rely on date or time processing functions could make incorrect calculations. Calendar, scheduling, or synchronizing problems could arise where systems use date or time stamps, or if dates or times are processed or manipulated in any way.
In short, if your system makes date or time calculations, you may experience calculation errors. | | | | Use the IBM Time Zone Update Utility to update Java |  | Users of WebSphere® Studio Application Developer Integration Edition may need to use the IBM® Time Zone Update Utility (JTZU) to apply updated time zone information to their Java™ JREs/SDKs to prevent any runtime problems. For more information about the JTZU tool:
- Review the following information:
- Download the utility from IBM developerWorks: IBM Time Zone Update Utility for Java
- Run the utility.
Important: If you run the utility in Interactive mode and you have the runtime test environment installed with WebSphere Studio Application Developer Integration Edition, remember to specify two Java installations for the utility to update (one JRE for WebSphere Studio Application Developer Integration Edition and one JRE used by the runtime environment). |
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| 13 Dec 2006 | Added change history table, updated title. | | 01 Dec 2006 | Created. |
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| Product categories: |
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| | Software | |
| | Business Integration and Optimization | |
| | Other Business Integration and Optimization | |
| | WebSphere Studio Application Developer Integration Edition | |
| | General | |
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| Operating system(s): |
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Linux, Windows
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| Software version: |
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5.1, 5.1.1
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| Reference #: |
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1250873
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| IBM Group: |
| | Software Group |
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| Modified date: |
| | 2006-12-01 |
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