title: String does not contain a date
body: <p>I have a DataFrame With This Column :</p>
  
  <pre><code>Mi_Meteo['Time_Instant'].head():
  
  0    2013/11/14 17:00
  1    2013/11/14 18:00
  2    2013/11/14 19:00
  3    2013/11/14 20:00
  4    2013/11/14 21:00
  Name: Time_Instant, dtype: object
  </code></pre>
  
  <p>After Doing Some Inspection This is What I realised :</p>
  
  <pre><code>Mi_Meteo['Time_Instant'].value_counts():
  
  2013/12/09 02:00    33
  2013/12/01 22:00    33
  2013/12/11 10:00    33
  2013/12/05 09:00    33
  .
  .
  .
  .
  2013/11/16 02:00    21
  2013/11/07 10:00    11
  2013/11/17 22:00    11
  DateTIme            3
  </code></pre>
  
  <p>So I striped it:</p>
  
  <pre><code>Mi_Meteo['Time_Instant'] = Mi_Meteo['Time_Instant'].str.rstrip('DateTIme')# Cause Otherwise I would get this Error When Converting : 'Unknown string format'
  </code></pre>
  
  <p>And Then I tried To Convert it :</p>
  
  <pre><code>Mi_Meteo['Time_Instant'] = pd.to_datetime(Mi_Meteo['Time_Instant'])
  </code></pre>
  
  <p>But I Get This Error:</p>
  
  <pre><code>String does not contain a date.
  </code></pre>
  
  <p>Any Suggestion Would Be Much Appreciated , Thank U all.</p>