You can also use the Convert function to return only the time portion of the field.
Select convert(char(8), datetimecolumn, 108) As TimeOnly
From tbl
Note 1: 108 represents a datetime time of hh:mm:ss.
Note 2: Don't get hung up on the way SQL Server stores dates and times. The storage format is fixed. Learn to use the datetime functions and Convert to display the data the way you want and you'll eliminate a lot of frustration and headaches associated with dates and times in SQL Server. Terry Broadbent
"The greatest obstacle to discovery is not ignorance -- it is the illusion of knowledge." - Daniel J Boorstin