title: Store timestamp with time 00:00:00
body: <p>I want to store a timestamp in the database with time component as <code>00:00:00</code>.<br>
  The following code: </p>
  
  <pre><code>$start_date = Carbon::createFromFormat('d-m-Y', $date_interval["start_date"]); 
  $end_date = Carbon::createFromFormat('d-m-Y', $date_interval["end_date"]); 
  </code></pre>
  
  <p>adds the current time to the date, when I provide a date only without time specification.<br>
  I need this because I need to retrieve the internal integer from the database afterwards which should be the start of the day.  </p>
  
  <p>What is the best way to store this 'start of day'?  </p>