how to calculate Hours?

[#1]

calculate hours between two dates like start date and end date. I have a qvw file attaching here can help on this. and i want to show that result in gantt chart

[oknotsen]

Hi,

([Start Time] - [Stop time]) * 24

or maybe better

round(([Start Time] - [Stop time]) * 24, 0.1)

Btw,

I noticed that one time field has Time with a capital letter and the other without. Consider being more consequent with your naming convention early in your development process as it will be hell to fix that later on.