...or any other time of the day, actually.
I've known for quite a while that they used black cloaks for indoor shots and charcoal grey ones for "middle of the night" outdoor shots, but I didn't know to appreciate the thought that went into it until my buddies and I tried it ourselves a couple of nights ago.
Long story short - I'm glad we found some spot lights around that brick wall :D
(You know what I had in mind for this last shot, right?
http://fuguestate.deviantart.com/art/Considering-92400315 :D)
As for shooting during day... let's just say that you have to be prepared to be cornered by Fingermen, ahem, police because some *constantly vigilant* citizens reported suspicios terrorist activities. No kidding.