I have a csv file with two different formats of date value, how to bring it to a single format : My CSV file looks like this

id	     date
1602	11/23/2015 14:10
1602	11/23/2015 22:45
1602	18/10/2011 09:19:46 AM
1702	18/10/2011 09:07:33 AM
1863	18/10/2011 09:07:35 AM
1436	18/10/2011 09:07:36 AM
