Just filling in time, I created a formula to extract the Date, Time, Hours, Minutes and Seconds from the values in column A just in case you are doing it in two steps. The same formula can be used to extract the end times from column B with a change of cell references from A to B.
Formula: copy to clipboard 
=(MID(A2,7,2)&"/"&MID(A2,5,2)&"/"&LEFT(A2,4)&" "&MID(A2,9,2)&":"&MID(A2,11,2)&":"&MID(A2,13,2))*1


Format as dd/mm/yyyy h:mm:ss AM/PM