I am using the datediff function in the calculated fields to calculate how long a case has been open for. I am using a whole number datatype with duration format (I have also tried none format). The formula I have used is DiffInYears(createdon, Now()), but I have also tried months and hours for the datediff formula.
The result is completely off and inconsistent. For example a case that was created two months ago may show a duration of 11 hours while another one will show a duration of two minutes even though it is days old. Also, the Years option and Hours option in the datediff calculation will show two separate results, it will 2 minutes and 11 hours for the same case (the result in the field shows hours and minutes next to the field).
I suspect is trying a conversion of some sort from the UTC field.
I would much appreciate anyone's advice or assistance on this. Thank you.