Received Date & Time: 10/29/2010 3:27:00 PM I have a question to ask about how formula to be set to show correct turn around time between start and end date exclude Sat/Sun & holidys, workday only. N. NARAYANK991 Excel Ninja. After free installing Kutools for Excel, please do as below:. I need a formula to calculate Turn Around Time. Formula for Turn Around Time.xlsx. The square brackets around "h" ensure that you can display hours greater than 23. 2. This is my formula that isn't working: =IF(F2>TIME(6,0,0),IF(F2 Formula Helper > Date & Time helper, see screenshot:. 1.