在SQL中查找两个不同日期之间的HH：MM数

I am creating a turnaround time report in SQL for my job and need to be able to calculate the number of HH:MM between two different dates taking into account the DAYS as well as the HOURS. I seem to find a lot of answers that will bring back just the HOURS but need the DAYS as well.I am creating a turnaround time report in SQL f