Local in Admin and user preferences area all set to UK date format Day/Month/Year.
And while I think of it - nothing to do with Date format but in the new (excellent) suiteP theme, on a leads page, when viewing a lead, any text in the description field just scrolls right across the page in one line - doesn’t appear as a complete description easily read. If you click on Edit that lead, then the description box is fine - not sure if its a bug or a css related thing
I have checked this a few times now and it if I have the date format in my CSV file as 12/8/2016 (12 Aug), it will import as 8th December.
If I change it to 8/12/2016 it imports correctly to 12/8/2016.