FIX: Could not create topic timers for certain locales.

https://meta.discourse.org/t/topic-timer-doesnt-work-for-fa-ir-locale/83702/2

app/assets/javascripts/select-kit/components/future-date-input-selector.js.es6

@@ -162,7 +162,7 @@ export default ComboBoxComponent.extend(DatetimeMixin, {
       const { time } = this._updateAt(value);
 
       if (time && !Ember.isEmpty(value)) {
-        input = time.format(FORMAT);
+        input = time.locale('en').format(FORMAT);
       }
 
       this.setProperties({ input, value });