Date formats do not match browser settings for language 

When browser settings for language are set to en-gb, certain widgets that display start and end dates of events might incorrectly display the dates in American English format ((MM/DD/YYYY)) instead of United Kingdom English format (DD/MM/YYYY). For example, when you view a series of events in the Timeline widget, the dates display incorrectly in both the hover text and the information bubble provided with the event.

As a workaround, do the following steps to add en-gb as an available locale in your configuration:

1. Open the MashupCenter_install_root\mm\config\ConfigService.properties file in an editor.
2. Add en-gb and en values to the list of available locales, for example: available.locales=en-gb,en,ar,de,es,fr,it,he,ja,ko,nl,pt-br,tr,zh,zh-tw,ROOT
3. Save the PROPERTIES file.
4. At a command line, run the following command to update the configuration: config.bat update-was-config. Note: For Linux®, replace config.bat with ./config.sh.
   

This workaround solves the date format issue, but be aware that it adds an additional request to get the en-gb language PROPERTIES files, which may result in slightly decreased performance and a 404 error response for the request in Firebug.