ACS custom_fields Date: Query ACSObject by date > now

Ti SDK & ACS vers. 3.2.2

I'm trying to query a Date of a custom_fields property (for ACS Post Obj), the documentation mentions that the string in the format: '2014-06-08 04:00:00 +0000', would convet to a Date.

After settings a date, I truly see the 'String' being converted to a Date Object (I also notice from the T in the middle which was not sent in my String).

Structure of my Post ACS:

content = "dlksdkfjn"
created_at = "2014-06-06T18:09:51+0000" 
custom_fields = (Object)#1
     postType = 2
     releaseDate = "2014-06-08T04:00:00+0000" // TODO query with $gte
id = "539203xxxXXxxXX11a7e"
title = "My Date Playrr"
updated_at = "2014-06-06T18:17:49+0000"

var now =  moment().format("YYYY-MM-DDTHH:mm:ssZ");
Ti.API.info('Now: ' + now);
 
   Cloud.Posts.query({
            limit: 10,
            where: { 'releaseDate': { '$gt': now } } // hmmm...?
        }, function (e) {
            if (e.success) {
                alert('Success:\n' + 'Count: ' + e.posts.length);
            } else {
                alert('Error:\n' + (e.error && e.message));
            }
        });