I have always had the best luck right before dark, but have also killed a few in the morning. My hunting group used to make a hog huntin south texas every year and we would hunt for a week until the money got stupid....We would hunt the hogs in the morning and evening and hunt javalina in the mid day...I hunted that ranch for 9 years running (I miss it) that was a awesome hunt......When I first went there I did some walking in the mid day looking for sign and found a promising spot, I started baiting with hog wild right then and killed a big boar that evening and that same spot produced good hogs for like 4 years and then went dead....I have killed a slew of them pigs late in the evening with just a few minutes of daylight left. I just killed a pig last week and that group came in with about 15 minutes of daylight left.....You might even want to consider some type of light for your sights....That has been my experience with the piggies...Good Luck...