Arriving on club sites after dark

I'm sorry if this has been done before, but I can't find the answer.

Obviously, it is preferable to arrive on a site before it goes dark. However, is there a prohibition on arriving after dark? Or do all club sites have a late arrivals bit so we can stress about manouvring and setting up when it is morning?

We are planning a trip to Knaresborough this weekend and failed to factor in the dark. Need to leave later than planned on the Friday. I will try to contact them, but just wondered if there is a general rule about this?