title: Cannot convert input [00:00:00.020000] of type <class 'datetime.time'> to Timestamp
body: <p>My input data has a high resolution of datetime with seconds in fraction. For example, it should be
  <strong>1900-01-01 17:40:14.410000</strong> instead of <strong>1900-01-01 17:40:14</strong>.</p>
  <p>Apparently this format has not been recognized by the pandas or python. How should I successfully convert this to pandas recognized time stamp style.</p>