Maximum and Minimum Time Value in a Range

I have used max and min function to display minimum and maximum time value; however, it is not displaying the correct time value from the list. I think there is a better formula to achieve this. From the sample data displayed below, minimum time value should be 11:30PM and maximum time value should be 6:30AM

See sample data below:

4/1/2013 11:45 PM
4/1/2013 11:30 PM
4/2/2013 6:30 AM
4/2/2013 6:15 AM
4/2/2013 6:00 AM
4/2/2013 5:45 AM
4/2/2013 5:30 AM
4/2/2013 1:30 AM
4/2/2013 1:15 AM
4/2/2013 1:00 AM
4/2/2013 12:45 AM
4/2/2013 12:30 AM
4/2/2013 12:15 AM
4/2/2013 12:00 AM