I would have to choose middle of the night...
In the dark, eyes see only in black and white... but with enough patience the colours you can get are nothing short of breathtaking.
Each month I wait patiently for a full moon and a clear sky... sometimes I'm luck, other times I'm not. But the patience just makes it even more exciting when you get a night like these.
Heres 3 examples of why I would take night over day...