Date and Time Asc and desc

hi

i have one table which contains date column(mm/dd/yyyy) and Time(hh:mm:ss t) column separately.both are in varchar data type now how can i get in asc order or desc order like as follows 

mm/dd/yyyy and hh:mm:ss t 

05/27/2017  and 04:33:45 PM

05/27/2017 and 04:32:00 am 

 04/01/2017 and 05:30:00 PM

03/01/2017 and 10:30:00 Am

 

please refer following 

please give the solution.

i need changes in varchar data type only not in datetime data type.