Problems recognizing dates from CSV import

I need to import a lot of information from a large CSV file.

Among others, it contains a timestamp that my Excel cannot recognize.
It looks like this: 6/19/2017 10:27:30 AM

(NB I'm using 24 and not 12 hours)

I need the field to be recognized as a date and time, as I need to use it grouped in a Pivot table

Can anybody help?