date format on home page

Hi, I try to change the date format on the home page (GK banner left and GK banner right)
which is "month day, year"
as seen on other posts, I've tried to change it in the php files (item.php, category-item.php...)
and in the language file but no way to have it "day month year"
(override is enabled)
Can you help me ?

url : www.maisonphotovilleneuve.com
thanks

But those are modules, so you have to check their settings.
Or you do not find then, you have to check module view (php file).

Hi Oscar
I agree with you and I checked NSP modules in admin.
At "date format" I have "d-m-Y"

and in view.php I found " $info_date = JHTML::_('date', $item['date'], $config['date_format']);"

Whatever, the website still displays "janvier 3, 2014" for example
:'(

Ok I've found where to edit that date format. I was not at the right module.
home page banner right (coming soon) date format has to be modified in backend/modules/coming soon
at "highlights - portal mode settings tab"

home page banner left : backend/modules/Tabs - Latest Stories
tab "Article layout / information blocks"

Yes, finding a good module is always first step to success
Next time use Front-end editing to choose right one, then files...