Dashboard data expression issue with Date fields

[DominicRobergeIADOT]

Hello

I am creating a data expression in dashboard, trying to convert data fields (from Central Time to UTC). When I look at the individual features, it's working, everything looks like I want it. However, when I push to the featureset to be used in a table , ALL the date fields have the same values... 

What am I doing wrong?

Thanks!

var portal = Portal('https://www.arcgis.com');
var fs = FeatureSetByPortalItem(
    portal,
    '1b32fd673de04b16b15bf5a923b7d1fb',
    0,
    [
        'dr_DateTime',
        'dr_DateText'
    ],
    false
);

// return fs
     
var features = [];
var feat;

// Populate feature array
for (var f in fs) { 
    feat = { 
        'attributes': { 
            'dr_DateTimeMd': ChangeTimeZone(f['dr_DateTime'],"+06:00"), 
            'dr_DateTimeF': f['dr_DateTime'],
            'dr_DateTimeUTCF': ToUTC(f['dr_DateTime']),
            'dr_DateTextF': f['dr_DateText'] 
        }}
    Push(features, feat);
};

// return features

var dowDict = { 
  'fields': [
  {'name': 'dr_DateTimeMd', 'type': 'esriFieldTypeDate'},
  {'name': 'dr_DateTimeF', 'type': 'esriFieldTypeDate'}, 
  {'name': 'dr_DateTimeUTCF', 'type': 'esriFieldTypeDate'}, 
  {'name': 'dr_DateTextF', 'type': 'esriFieldTypeString'}
  ], 
  'geometryType': '', 
  'features': features
}; 

// Convert dictionary to feature set. 
var fs_dict = FeatureSet(dowDict); 

return fs_dict

raw featureset

Each individual features:

Final featureset