is xml_date property format not applicable to json?


I have events read from external json:

scheduler.config.xml_date = "%Y-%m-%d %H:%i";
scheduler.config.first_hour = 8;
scheduler.init('scheduler_here', new Date(), "week");
scheduler.load("/event/listEvents", 'json');

the /event/listEvents produces the following data:

[{“idss”:111,“text”:“Event1”,“start_date”:“2014-08-10 11:15”,“end_date”:“2014-08-10 12:00”,“resource”:“resource1”},{“idss”:222,“text”:“Event2”,“start_date”:“2014-08-20 20:00”,“end_date”:“2014-08-22 18:30”,“resource”:“resource1”}]

Calendar displays no events. When I change the date format in json to m/d/Y and remove xml_date property, evenst are displayed.

So question - is xml_date proporty not applicable to json data?