You answered your own question Nebo... With most good bucks, you usually have about a 20-30 minute window at the start and end to each day... If you hunt where you can spot them, let them bed, and stalk in on them, you will have more excitement throughout the day.
Still hunting, moving down a mountainside through thick cover, coming in above bedded bucks, has produced some luck for me, but without watching deer enter an area like that, it is a crap shoot...
Also, every year, and everywhere I hunt, it's worth being out and about early afternoon, like 1pm. I always see deer, including good bucks, up and about at this time, feeding or just moving around to find more shade...
"Therefore, wo be unto him that is at ease in Zion!" 2 Ne. 28: 24