This issue occur when Table access via DB link.
First try below link:
http://subu-jdeveloper11gadf.blogspot.in/2012/03/about-occurences-of-timezone-not-found.html
If the first link not support try below:
Add AddVMOption -Duser.timezone=UTC+05:30 to the "jdev.conf" file in oracle installation root>\Middleware\jdeveloper\jdev\bin. Time zone should be region spesific.
Please refer blow link:
http://stackoverflow.com/questions/9156379/ora-01882-timezone-region-not-found