I should actually be working 8h a day, but most of it is spend not working. If I'm honest I'm probably working more like 3h a day even though I enjoy my job.
IT is fun, I do anywhere from 2 hours to 16 hours in my 8hr shift depending on what the day brings me. 16 hours is the extreme rare, of course, and either outage or project based.
I'm so happy we have a T1 service desk to handle that, really frees up the time to deal with user error. The mining industry is a real mixed bag but the skill development is top notch.