默认格式datetime Django 1.6

I have a project in Django 1.6 and a configuration file called formats.py, it is defined as I want the date to appear in my project. In my settings I tell the FORMAT_MODULE_PATH the path to that file,but Django is ignoring this file and whenever I have the need display date use filters. How do I stop the default date format in the project? I have a project in Django 1.6 and a configurat