I am trying to display the date and time in javascript based on users browser language preference. I am receiveing the date in UTC format and by using toLocaleString() i am
If you want consistent output regardless of browser, moment.js is a good option.
// set the desired language
moment.lang('sv');
// use one of the localized format strings
var s = moment(yourDate).format('LLLL');
There are live examples on the moment.js home page, showing all of the available languages. I don't believe there is currently support for Greek, but since it is open-source you could always add it yourself.