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Latest DSTv11 Timezone Patches Available for E-Business Suite

Steven Chan
Senior Director
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For reasons mysterious to me, world governments apparently like to change their timezones on a regular basis.  If your E-Business Suite Release 11i or 12 environment has been configured to support Daylight Saving Time (DST) or international time zones, it's important that you keep your timezone definition files up-to-date.  They were last changed in February 2009, and they've been updated once again:  DSTv11 is now available and certified with the E-Business Suite.

Is Your 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:

  • Your Oracle E-Business Suite environment is located in the affected country or region OR
  • Your Oracle E-Business Suite environment is located outside the affected country or region but you conduct business or have customers or suppliers in the affected country or region.

We last discussed the DSTv10 patches on this blog.  The latest "DSTv11" timezone definition file is cumulative and includes all DST changes released in earlier time zone definitions.  DSTv11 includes changes to the following timezones since the DSTv10 release:

  • Africa/Cairo Africa/Casablanca Africa/Tunis America/Adak America/Anchorage America/Argentina/Cordoba America/Argentina/Jujuy America/Argentina/Mendoza America/Argentina/Salta America/Argentina/San_Luis America/Atka America/Bogota America/Cordoba America/Eirunepe America/Havana America/Jujuy America/Juneau America/Lima America/Managua America/Mendoza America/Miquelon America/Nome America/Noronha America/Porto_Acre America/Resolute America/Rio_Branco America/Rosario America/Santiago America/Thule America/Yakutat Antarctica/Palmer Asia/Amman Asia/Baghdad Asia/Baku Asia/Choibalsan Asia/Damascus Asia/Gaza Asia/Hovd Asia/Istanbul Asia/Karachi Asia/Novosibirsk Asia/Samarkand Asia/Tashkent Asia/Ulaanbaatar Asia/Ulan_Bator Brazil/Acre Brazil/DeNoronha Chile/Continental Chile/EasterIsland Cuba Egypt Europe/Chisinau Europe/Istanbul Europe/Kaliningrad Europe/Kiev Europe/Samara Europe/Simferopol Europe/Tiraspol Europe/Vienna Europe/Warsaw Indian/Mauritius Pacific/Easter Poland Turkey US/Alaska US/Aleutian

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.

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