If your E-Business Suite Release 11i or 12 environment is configured to support Daylight Saving Time (DST) or international time zones, it's important to keep your timezone definition files up-to-date. They were last changed in July 2009 and released as DSTv11. DSTv13 is now available and certified with Oracle E-Business Suite Release 11i and 12. Note that if you've prided yourself on keeping your environment up-to-date, you didn't miss DSTv12. That version was not released externally. DSTv13 is the next release after DSTv11.
Is Your Apps Environment Affected?
When a country or region changes DST rules or their time zone definitions, your Oracle E-Business Suite environment will require patching if:
What Patches Are Required?
In case you haven't been following our previous time zone or Daylight Saving Time (DST)-related articles, international timezone definitions for E-Business Suite environments are captured in a series of patches for the database and application tier servers in your environment.
The actual scope and number of patches that need to be applied depend on whether you've applied previous DST or timezone-related patches. Some sysadmins have remarked to me that it generally takes more time to read the various timezone documents than it takes to apply these patches, but your mileage may vary.
We've published the following Notes which identify the various components in your E-Business Suite environment that may need DST patches:
What Have Your Experiences Been?
DST patching was a hot topic a few years ago, so much so that we convened some emergency web-based seminars for customers to clarify out the requirements for E-Business Suite environments. Since then, it seems like time zone patching has become more predictable and better-documented, and I haven't heard about any recent customer escalations in this area.
I'd be interested in hearing about your experiences lately in keeping your Apps environment up-to-date with time zone patches; feel free to drop me an email or post a comment here with your thoughts.