If you want the RSS feed items date to be displayed in your language instead of English, just modify mod_jw_srfr.php line 176 :

original (displays the date in English) :
modified (displays the date in the language defined by your Joomla template) :
I found that function in the SimplePie documentation at simplepie.org/wiki/tutorial/translate_timestamps_into_another_language

To display the date in your language in v2.1, modify helper.php line 63 :

original (displays the date in English) :
modified (displays the date in the language defined by your Joomla template) :
Then go to the module configuration and replace the "Date & time format" setting with something in the strftime format, for example %A %e %B

i am using that one. is working but it gives wrong time!
for example time of an article is 13:09 and it gives me 08:09
why ?

no reply ? come on someone should know :/