In my exports, I want hours. So what I do is add Item Installation Time and then a calculated field right below that. On the Item Installation Time, I set it to minutes with 0 decimal places and in the Column tab, I uncheck "Output" so this data does not show in the data export. Then in my calculated field, I check "Output" and set the calculation to (Item Installation Time / 60). This will give decimal hours for my exports.