I recommend marinating chicken drumsticks for at least 30 minutes, but up to a few hours before cooking (always refrigerated while marinating). I would not go past 24 hours, because the acid in the marinade can start to break down the meat. Because the drumsticks are smaller, you can get away with less marinating time. If you use this for a larger cut, like chicken breast or thighs, I would recommend at least 1-2 hours of marinating time.