Hmm, well the physical action takes place in one night, and should be slightly close to Lucid due to part two or three (which ever part with the white horse in the dream scape...I'm thinking part three), as my part sort of fits in with that, unless I was reading something else in the dream. *grins*

I'm not sure how long Hakuba would need to process the information, but then again, as him processing is not in my story, I guess it doesn't really matter.

So from a night to a few days really, not that much time, but I'm not sure how far the parts before span across.