BREAKING: This is the video of vandal defacing @KingJames mural at stroke of midnight this am in #Venice. Video from @BabyBluesBBQ surveillance cam. @Lakers @NBCLA.
I doubt the usage of at stroke of midnight, which I think it should be at the stroke of midnight instead.
I also see on the stroke of midnight in dictionaries. So, I am wondering what's the difference between at the stroke of midnight and on the stroke of midnight? In my opinion, at the stroke of midnight seems to make more sense because at denotes a point of time. Any thoughts?
The full source.