DateDiff to output hours and minutes

Question

my code gives TOTAL HOURS in hours, but i am trying to output something like

TotalHours 
  8:36

where 8 represents hour part and 36 repres

Answer 1

Very simply:

CONVERT(TIME,Date2 - Date1)

For example:

Declare @Date2 DATETIME = '2016-01-01 10:01:10.022'
Declare @Date1 DATETIME = '2016-01-01 10:00:00.000'
Select CONVERT(TIME,@Date2 - @Date1) as ElapsedTime

Yelds:

ElapsedTime
----------------
00:01:10.0233333

(1 row(s) affected)