title: Slice a Time Series
body: <p>Let's say I have a time series "TS" with the range of months.
  How can I get a sub-time series from TS with for example the range of one day.</p>
  
  <p>I tried this code :</p>
  
  <pre><code>subts = pd.Series(TS,index=pd.to_datetime(['2015-09-26','2015-09-27']))
  </code></pre>
  
  <p>But I get this error :</p>
  
  <pre><code>ValueError: Wrong number of items passed 472, placement implies 2
  </code></pre>
  
  <p>What I understood is, the method I chose matches every value from TS (472rows) an the time range I gave in the constructor (i.e : ['2015-09-26','2015-09-27'])</p>
  
  <p>Is there a way to really slice a time series? Just extract a part of it within a given time range?</p>