NC as some details are outing.
I know this thread topic has been done to death but DP thinks IABU and I think IANBU so I want to put the question to the masses and show him the results. 
So. Circumstances. No DC yet. I work 8-5 Mon-Fri office job so not physical but requires a lot of problem solving and brain work. DP works 7pm to 1am Sun-Thurs. Physical job but not one that requires much thinking. Typically he get home at 1.30am and is in bed by 2.30am. Normally gets up somewhere between 9am and 10am. Sometimes earlier, sometimes later. This means he has 8hrs during the day in which to do as he pleases. My issue is that he does just that, exactly as he pleases, and not much else.
What he does: all the food shopping (he likes to take a walk up to the shops once a day, sometimes he goes twice a day. There is really no need for him to do this, he says he just likes to "get out the house") and he cooks dinner Mon-Thurs due to our awkward working times (Dinner is typically a meat-and-two-veg affair, not lavish complicated meals).
What I do: Pretty much everything else.
I'll use yesterday as an example of our typical days.
Me: work 8-5, come home, have dinner with DP before he goes to work, stack dishwasher, wipe down kitchen, walk the dog for about an hour and a half, home, quick clean round the house, put a load of clean laundry away, put another load in the machine, empty dishwasher, make my lunch for tomorrow, shower, bed.
DP: Woke up 9am, had 3 cups of coffee, took a walk up to the shops (10 min walk away), watched YouTube videos, had lunch (I came home for lunch yesterday so chatted to me for an hour or so), more YouTube videos, had a bath, made dinner, went to work.
AIBU in expecting him to do more during the day? I'm not expecting him to do chores for the entire time but I at least want him to do something. He does tidy up after himself so the housework isn't really an issue (I do a big clean of the house on Sundays and force him to participate) but he could take the dog out for an hour or do some weeding/cut the grass.. just anything that doesn't involve drinking coffee and being glued to his Fire tablet. 
I'll be showing him this thread once I'm home so AIBU or is he?