Same Problem here. Add german release date for http://www.themoviedb.org/movie/188855-j-ger-des-augenblicks and he first saved the day-1.

Browser: Firefox 20 Language: german Locale: german Time: 09:24 pm Europe/Berlin

I think you store the dates in an other time zone, like UTC, do you? Maybe it is a problem with time calculation and the +/- 1 for summer/winter time. ;)

Ok maybe I found the problem:

I track what's happening when closing episode edit dialog:

....
var dataSource = new kendo.data.DataSource({
  transport: {
    read:  {
      url: "/tv/5464-n-v-t-vn-ci/season/1/remote/episodes",
  ....
  ....
  change: function(e) {
    var offsetMiliseconds = new Date().getTimezoneOffset() * 60000;
    var items = e.items;

    for (var i = 0; i < items.length; i++) {
      if (items[i].air_date) {
        var date_object = new Date(items[i].air_date);
        items[i].air_date = new Date(date_object.getTime() + offsetMiliseconds);
      }
    }
.....

Concretely this line:

items[i].air_date = new Date(date_object.getTime() + offsetMiliseconds);

Which exchange correct date object with one where the timezone is corrected to GMT.

Hope this helps.

That was actually just added this week in an attempt to fix it.

Mind keeping all of this in one discussion: https://www.themoviedb.org/talk/50fa7028760ee305350f7d98?page=2#5265aac619c29515a60c85e7

Thanks!