Two hours from shooting film to posting a digital version? You're a better man than I am. I have a negative I shot 4 hours ago, the negative is just now dry, and I might--MIGHT -- get a print of it out tonight. Your turn-around is impressive.
Lawrence, I'm sure your tongue is somewhat in your cheek , but LR lacks the capacity to edit Exif data. Generally I try to edit (I use exiftool) the tiffs and raws before I import to LR so that at least the camera and lens info is correct, but as many rolls I shoot are over periods of days if not weeks, trying to remember what i took when is beyond my patience. so the date/time fields tend to remain blank, and I think Flickr probably sets the time-taken to time-created (which is never blank on a jpeg exported from LR). Of course I could always switch off export of Exif in LR or Exif display in Flickr, or even just use tags.
anyway, perhaps that sort of discussion belongs in a different forum, so I'll leave it there.