Haha, this is clever. Thank you Vishwarath. I thought using the same expression twice with different formats would mess up the values. This works perfect in Straight Table. Thanks a lot. But I see that this is not an ideal way when you are showing the values in a Bar Chart. It only shows up the Day(s) values on the Axes but not the Day+hh:mm:ss values.
Yes because we are using this Interval function twice to get the text value. I would suggest you to use the same format either in your script or if you are using this as expr use like Interval(Date2-Date1, 'd hh:mm:ss') and label your chart with something like Days.
