title: Filtering dataframe given a list of dates
body: <p>I have the following dataframe:</p>
  <pre><code>            Date            Site
  0   1999-10-01 12:00:00      65
  1   1999-10-01 16:00:00      21
  2   1999-10-02 11:00:00      57
  3   1999-10-05 12:00:00      53
  4   1999-10-10 16:00:00      43
  5   1999-10-24 07:00:00      33
  6   1999-10-24 08:00:00      21
  </code></pre>
  <p>I have a datetime list that I get from <code>tolist()</code> in another dataframe.</p>
  <pre><code>[Timestamp('1999-10-01 00:00:00'),
   Timestamp('1999-10-02 00:00:00'),
   Timestamp('1999-10-24 00:00:00')]
  </code></pre>
  <p>The <code>tolist()</code> purpose is to filter the dataframe based on the dates inside the list. The end result is:</p>
  <pre><code>            Date            Site
  0   1999-10-01 12:00:00      65
  1   1999-10-01 16:00:00      21
  2   1999-10-02 11:00:00      57
  5   1999-10-24 07:00:00      33
  6   1999-10-24 08:00:00      21
  </code></pre>
  <p>Where only 1st, 2nd and 24th Oct rows will appear in the dataframe.</p>
  <p>What is the approach to do this? I have looked up and only see solution to filter between dates or a singular date.</p>
  <p>Thank you.</p>