We do our last rounds at about 10pm ish. All of our buns have secure runs on hardstanding attached to their indoor accommodation so none of them actually get shut in at all.
Afterall, if the run is secure then it's secure whether it's night or day so mine have all their space all the time. Makes their life less stressful as they aren't shut in and makes my life easier as I don't have to chase them to bed at night. All of my buns seem to be much happier since I adopted this way of doing things. It was Tamsin who spoke about runs having to be secure enough all of the time and not just at night some time back on a post and she's so right in my opinion.