That question is not really clear to me. A Date/Time value in PowerCenter is a Date/Time value and nothing else.
What you have posted are different string formats for the same point in time, but that's a different story. You can always "translate" a Date/Time port to a string representation using the TO_CHAR() function (there's a chapter with loads of explanations for the different format parts in the Transformation Language guide for PowerCenter), but nonetheless this string is simply a representation of the Date/Time format and not the Date/Time value itself.
In your case, if your Date/Time input port i_Date has a value of Jan 1st, 2000, at 5:00 A.M., then you can "translate" this to the format you've described above like this:
TO_CHAR( i_Date, 'MM/DD/YYYY HH12:MI:SS AM')