title: Firebase - How can I retrieve the objects in a date range?
body: <p>I have the next JSON structure in Firebase:</p>
  
  <pre><code>{
    "-KGX6kYg1NO6d9hn-8um" : {
      "phase" : "A",
      "timestamp" : "12-18-2015 19:43:37"
    },
    "-KGXOGSxa3vompZX9UO_" : {
      "phase" : "B",
      "timestamp" : "03-28-2016 15:28:21"
    },
    "-KMUvszD-vm3Nu02sofd" : {
      "phase" : "A",
      "timestamp" : "04-03-2014 03:57:56"
    }
  }
  </code></pre>
  
  <p>Is it possible to filter the objects by the timestamp key through a range of date?.. For example, I want to get the objects with timestamp from January 2015 to today date. If not possible, what's the better way to filter the objects by dates?... I'm developing an iOS app.</p>
  
  <p>Thanks.</p>