title: Firebase endAt() not working with date string?
body: <p>Pretty basic question in here </p>
  
  <p>My Stored Date String is like this in Firebase DB</p>
  
  <pre><code>23-Oct-2016 07:00:11 AM
  </code></pre>
  
  <p>Now i am firing this query , i am getting all the data starting with that date</p>
  
  <pre><code>   Query query = mDatabase.orderByChild("time").startAt("23-Oct-2016")
  </code></pre>
  
  <p>Now I also want to filter by current AM/PM time i am trying query like this but it has no effect on results. </p>
  
  <p>Basically it should not return any object  if the current time is PM , i don't know why its not working .</p>
  
  <pre><code>   Query query = mDatabase.orderByChild("time").startAt("23-Oct-2016").endAt("PM");
  </code></pre>