Typical Vs Perfect use

Hi all, so I’m on junel 1/20 which is a combo birth control pill. I checked over my packet but it doesn’t really provide much information on what’s consider perfect vs typical usage. I’ve heard that as long as you take the pill within 12 hours of your usual time it’s still perfect use? I never go over two hours. Is that consider perfect usage? Just wanna know if I’m doing anything wrong.