I was originally going to put this in the Critiques section, but I don't think that this is developed enough to really suggest yet.
My thought is thus: in the current system, there are eight RL hours in each H&H day. This is in rough numbers a good amount; however, I would ask that this be reconsidered. I say this because I am only able to play the game at around 6:30 PM Pacific to 10:30 PM Pacific. This time period correlates EXACTLY with nightfall; I quit juuust as it starts to get light enough to work without a torch.
What I would suggest instead is 7, 9, or 10 RL hours to H&H day. In this way, there will be no lockstep problem.
I would not ask this to be taken lightly, because I know that the length of the day will affect many other things, including plant growth, personal beliefs, and so on.