Blurring The Lines

Why do many people light Chanuka candles at sundown when it is still somewhat light outside and not when it is completely dark. שרגא בטיהרא מאי אהני - Who needs a candle by day??

Maran HaRav Hutner - The Greeks mixed everything up and tried to blur the lines between what is holy and what is secular. The most appropriate time to light up their darkness is in the evening, ערב - which means mixture [like the word תערובת].