mindfulness thinking about future and past?

Is there such thing as mindfulness thinking about the future or past? I have a job that requires a lot of "going" into the future and past (projecting forward and assessing the past). I was wondering if could practice mindfulness while working. But it's not like I'm working with my hands, where I can be completely concentrated at the current moment with what I'm doing. From what I understand, mindfulness practice has to do with staying in the present. So my understanding is that it is inherently in conflict with what I do for work.