So would that be 8 AM to 6 PM for me? or 8 PM to 6 AM?
For the first case I could cover nicely from 10AM to 6PM, and in the second case I could cover from 8PM to 4AM so either way it'd just leave a blind hour or two, and if it comes to having to cover the whole thing for some particular reason, I can always just stay up one more hour or wake up an hour earlier.
About the replacement I'm currently in the middle of my very first mafia game elsewhere so I don't think I can do that, I'll leave that for someone more experienced.