Well i haven't done a count regarding the number of my dreams that are day or night.
However, i would estimate that it's about 50 - 50.
For me, whether a dream is day, or night, isn't so much the issue, it's whether the scene is visually clear as in HD, or whether it's somewhat vague and difficult to see what is happening.
A vehicle or a building may well be fairly clear to see, whereas the face of a person may be vague to see.
Or, seeing a page that has words on it, and only a few of the words are clear to read and the rest are vague.
Regarding the content, or even the context of the dream, day or night may have a different meaning.
Night could mean that something is hidden, whereas day means something can be seen.
And, i would have to read your dreams, to be able to interpret them properly and not give a "generalised" answer.