translating the date time on the theme only

Hi everybody!

This is my first post here and i hope i will find some help ??

I’m trying to translate the date and time on a template.
Wordpress is in english and i want to keep the admin in english but i translated the template to another language successfully by adding the .po and .mo files in the ‘lang’ folder of the theme.
The remaining thing is the date and time, how can i get it translated on the template only without getting it translated on the admin?

Thanks a lot for your help in advance!