utc.js

// app/transforms/utc.js

import moment from 'moment';
import Transform from 'ember-data/transform';

export default Transform.extend({
  deserialize(serialized) {
    const date = serialized.split('T')[0];
    return moment(date).toDate();
  },

  serialize(deserialized) {
    const date = moment(deserialized).format('YYYY-MM-DD');
    return moment.utc(date).toDate();
  }
});