title: Strip microsecond from datetime
body: <p>For a given timedata - <code>2018-06-01 06:36:40.047883+00:00</code>, I want to remove microsecond and strip the value after '+'. Most of my dataset contains values like <code>2018-06-04 11:30:00+00:00</code> without the microsecond part. </p>
  
  <p>How to have a common date time format for all values?</p>