I like hunting both, but prefer night over day, just something about seeing eyes glow gets me. I think during the daylight the best time is 30 min to hour before dark, but I've called them in in the mornings and in the middle of the day. The biggest concerns is are there any yotes where you are calling, how are you hunting the wind and are they educated. Yotes are smart, and they will use the wind to fool ya. I like to set up with the wind in my face or a cross wind, and use the wind to pull them into an area for a good shot.
“There is no hunting like the hunting of man, and those who have hunted armed men long enough and liked it, never cared for anything else thereafter.”- Ernest Hemingway