Night time is night time not a big deal but instrument is valuable so you might look into it. It also depends on the airline, if the airline has a lot of tprop flying they're probably not going to hire you if you only have a few dozen instrument hours. If you're going for all jet airlines, not going to matter much but then jet flying is a different animal, you got to look into that too. I had the pleasure of ride along in a EMB-135, that thing is so automated a low time guy can fly that thing with out any problems.