[MrGraham]

OK the fact that datediff is an actual command and not a variable makes sense now, I just assumed it was something from earlier in the page.

I see what I want to do now. Here comes the most basic of basic CF questions - what represents null in equations? I did < cfif time_action IS NULL > and it did not like it.

Edit: I found answer, null is represented by "" in CF commands. Still not able to get code to work, more playtime.