It is not a waste of time IMO. I have shot several bucks over the years during this time frame. I do find it best to be set up away from fields and sticking mainly in the wooded areas. I have noticed that bucks or any deer will move around during mid day. I think they just need to strech and get a little browsing in or something. But if you are talking about during the rut then they will be moving at almost any time of day or night threw out the rut..