KB440971: Time zone issue in Web preferences

SYMPTOM
When users go to Web Preferences -> [Language] section, choose Time Zone: GMT+5 Pakistan/Lahore and try to save their changes, they may face the following error:
Invalid Information
Please correct the marked fields and try again.

CAUSE
This is an identified limitation of Strategy Web application and is not related to any end-user/client/browser settings.
 
ACTION
This reported defect has been already brought to Strategy’s attention and the fix is implemented in upcoming version 11.1. Please consider upgrading to benefit from the fix.
Workaround
The issue can be fixed by modifying the sys_definition.xml which handles the validation. The file is located at <MSTR-Web root directory>/WEB-INF/xml/sys_definitions.xml. Below are the steps:

1. On the Strategy Web machine navigate to WEB-INF/xml
   
2. Open the sys_definitions.xml
   
3. Locate the following block of code
   <allowableValue n="26" des="(GMT +5:00) Pakistan/Lahore"
         des-id="mstrWeb.2628" v="1" />
   
4. Replace it with the following block of code
   <allowableValue n="26" des="(GMT +5:00) Pakistan/Lahore"
         des-id="mstrWeb.2628" v="PLT" />
   
5. Save and close the file
   
6. Restart your Web Application Server for the change to take effect