I think you'd be fine with just explaining it at an interview. The three interviews I went to, there wasn't a single question about how my time was computed or not. I took in my green SARMS folder and all three places were happy with it.
I have heard of other places that gave interviewees a lot of grief over other time, military conversion times or the whole PIC, AC, IP, EP, copilot time gymnastics. Probably places I wouldn't want to be.
Just my .02