I'm importing a .csv file with a load of dates in it format is something like (01/01/2012 00:12, so dd/mm/yyyy hh:mm), and I want to find the time difference between certain dates. What I'm trying to do is use Nominal to Date to change the entries to date format, then use Generate Attribute and date_diff() to get the difference between the dates. The problem is when I use Nominal to Date it makes the month for every single month to be January, and hence gives wrong results when I get the difference between the dates. Just wondering how I can overcome this, can't figure it out. Thanks.